Commit-Messages in Git werden oft vernachlässigt. Viele sehen sie lediglich als notwendiges Übel an, um Änderungen zu speichern. Dabei sind aussagekräftige Commit-Messages ein entscheidender Faktor für den Erfolg eines Projekts: Sie sorgen eine gute Nachvollziehbarkeit von Änderungen, eine effiziente Zusammenarbeit im Team und eine schnellere Fehlersuche. Kein Grund, die Commit-Messages automatisch mit Hilfe von KI vorbereiten zu lassen.
...Der Februar hat manchmal eine ungewöhnlich ansprechende Form im Kalender. Beispielsweise konnte man im Februar 2021 einen solchen Moment zu erleben, einen "perfekt rechteckigen Februar" zu sehen. Dieser seltene Effekt tritt auf, wenn der Februar genau \(28\) Tage hat und der 1. Februar auf einen Montag fällt. Aber wie oft kommt das tatsächlich vor und wie lange muss man auf das nächste Mal warten?
...CSS ist für die meisten von uns immer noch verwirrend: Es hat hunderte schlecht benannte Eigenschaften, von denen jede das Ergebnis auf nicht intuitive Weise beeinflussen kann. Die vertikale Positionierung von Elementen in der Webentwicklung ist tricky und hat in der Vergangenheit oft Kopfzerbrechen bereitet. Doch diese Zeiten sind glücklicherweise vorbei.
...CSS-Übergänge sind eine gute Möglichkeit, Interaktivität zu erzeugen. Es genügt, transition
auf den Ausgangszustand eines Elements anzuwenden, und der Browser animiert den Übergang zwischen den beiden Zuständen. Übergänge für intrinsische Elementgrößen wie auto
sind jedoch seit Jahrzehnten ein Problem für Webentwickler, und die einzige Möglichkeit bestand darin, die Höhe dynamisch mit JavaScript zu berechnen.
Es gibt kein \(n \in \mathbb{Z}^+\), so dass \(0 < n < 1\).
...Die Physiker George Gamow und Marvin Stern bemerkten im Jahre 1950 ein interessantes Phänomen: Gamow, der ein Büro im ersten Stock eines sechsstöckigen Gebäudes hatte, bemerkte, dass der nächste ankommende Fahrstuhl in fünf von sechs Fällen nach unten fuhr, obwohl er nach oben wollte. Stern, der im fünften Stock arbeitete, beobachtete das Gegenteil.
...Ein Quine-Programm oder Quine ist ein Programm, das beim Ausführen seinen eigenen Quellcode ausgibt. Ein Quine darf nicht „aus sich selbst heraustreten“, indem es beispielsweise den Inhalt der Datei ausdruckt, in der es enthalten ist, oder introspektive Fähigkeiten verwendet, um seine eigene Darstellung auszudrucken. Stattdessen muss es seinen eigenen Quellcode berechnen.
...Mächtige Tools wie logrotate erleichtern die Arbeit bei der Rotation von Log- oder Backup-Dateien erheblich. So werden die Dateien nach einer bestimmten Zeitspanne oder wenn sie eine bestimmte Größe erreichen, rotiert. Wer auf einem entfernten Server dieses Tool nicht zur Verfügung hat und nur remote SSH-Kommandos ausführen kann, kann sich selbst mit einem kleinen Bash-Script behelfen, das alte Dateien löscht und dabei nur einen Request absetzt.
...In der Welt der Zahlen stößt man immer wieder auf überraschende Muster, die sowohl verblüffend als auch erhellend sein können. Eine solche Kuriosität ist das Benford’sche Gesetz, auch bekannt als das Gesetz der ersten Ziffer. Dieses mathematische Phänomen beschreibt die Häufigkeitsverteilung der ersten Ziffern in vielen realen Datensätzen und bietet interessante Einblicke in die Natur von Zahlen, wie sie in unserer Umwelt vorkommen.
...Ich habe zwei Kinder und einen Sohn, der an einem Donnerstag geboren wurde. Wie groß ist die Wahrscheinlichkeit, dass ich eine Tochter habe? Bezeichnen wir die Wochentage mit den Zahlen \(1, 2, … , 7\) mit \(1\ =\) Montag, \(2 =\) Dienstag und so weiter. Jetzt können wir das Ereignis als „am Tag \(n\) wurde ein Junge geboren“ als \(B_n\), und ebenso ähnlich für \(G_n\) definieren.
...Unter der Annahme, dass die Anzahl \(Y\) aller Menschen, die jemals geboren wurden und irgendwann geboren werden, begrenzt ist, sei \(x\) Deine absolute Position vom Beginn der Liste. Dann ist \(0 < \frac{x}{Y} \leq 1\). Wir können nun mit einer Wahrscheinlichkeit von \(95\%\) sagen, dass Du unter den letzten \(95\%\) aller jemals geborenen Menschen bist, also \(0,05 < \frac{x}{Y} \leq 1\) und damit \(Y < \frac{x}{0,05} = \frac{100 \cdot x}{5} = 20 \cdot x\).
...Esi sivakalisi silandelayo saziwa ngokuba yi-"drinks's paradox": "Kukho umntu kwindawo yentselo, ngoko ke ukuba uyasela, wonke umntu okwindawo yokusela uyasela." Ayinamsebenzi nokuba umntu omnye ukhuthaza abanye ukuba basele okanye kukho olunye ucango olungasemva, njengoko siza kubona okomzuzwana. Ngumzekelo omhle ovela kwimathematika yomyalelo wokuqala.
...Inkwenkwe icinga ngenani elithi \(1\) , \(2\) okanye \(3\) kwaye intombazana ivunyelwa ukuba ibuze umbuzo omnye ngelo nani. Inkwenkwe inokuphendula kuphela " Ewe ", " Hayi ", okanye " Andazi" . Ngokubuza imibuzo echuliweyo, le ntwazana iyakwazi ukubiza inombolo echanekileyo eyayicingwa yinkwenkwe emva kokuba eyiphendule. Uthini umbuzo wakho?
...Khawucinge ukuba ngenye imini ufumana iphakheji engaqondakaliyo engenamthumeli. Unomdla, uvula ipakethe kwaye ufumane iringi oyinika intombi yakho. Kumashumi eminyaka kamva, nguye onokuthi asebenzise umngxuma wokujula ukuze athumele izinto kwangexesha. Ukwenza oku ngeringi owawukhe wamnika yona, esongelwe ngepakethe ayibhekisa kuwe. Umbuzo ngulo: uvela phi umsesane?
...Njengenye indlela exabiswa kakhulu Travis CI , Izenzo zeGitHub nazo sele zikhona ixesha elithile.Njengesixhobo sokudibanisa esiqhubekayo, sihlanganiswe kakuhle kakhulu kwi-platform yekhowudi ye-GitHub kwaye ngoku izinzile kakhulu. Iintshukumo zeGitHub zisekwe kwiifayile zoqwalaselo ze-YAML ezibekwe kwindawo yokugcina apho kufuneka kuqhutywe umsebenzi.
...Ngowe-1961 uJames noStein bapapasha iphepha elithi Estimation with Quadratic Loss . Thatha idata esasazwe ngokuqhelekileyo ngentsingiselo engaziwayo \(\mu\) kunye nokwahlukana \(1\) . Ukuba ngoku ukhetha ixabiso elingacwangciswanga \(x\) kule datha kwaye kufuneka uqikelele intsingiselo \(\mu\) ngokwesiseko soku, ngentuitively \(x\) luqikelelo olufanelekileyo lwe \(\mu\) (ekubeni unikezelo oluqhelekileyo lukhona, okukhethiweyo ngokungenamkhethe \(x\) mhlawumbi kufutshane \(\mu\) ).
...Kudala kubhengezwe - ngoku iyinyani : IMicrosoft ilucimile ukuqinisekiswa ngephasiwedi kwiiprothokholi ezithile kuTshintsho kwi-Intanethi ukusuka ngoSeptemba ka-2022 ngokuthanda i-oAuth2. Imiba yeGitHub yamathala eencwadi amaninzi kunye nezikripthi ezigcinayo zenza kucace ukuba utshintsho lwabamba abalawuli abaninzi ngokumangalisayo. Apha ngezantsi sibonisa indlela yokuqhubeka nokufikelela imixholo yebhokisi yemeyile yoTshintshiselwano ngoncedo lwe-oAuth2 nge-PHP nge-IMAP.
...UUIDs (Universally Unique Id entifiers) ngamaxabiso angama-128-bit asetyenziswa kugcino lwedatha, phakathi kwezinye izinto, ukuchonga amangeniso etafile ngokukodwa. Zimelwe njengomtya wehexadecimal owahlulwe ngokwamaqela amahlanu ahlulwe ngamakhonkco (Umzekelo: 09fe49b3-4d2b-471c-ac04-36c9e706b85f
). Nantsi lapho ezininzi Iingxoxo malunga neenzuzo kunye nokungalunganga kwee-UUIDs kwiinkcukacha zolwazi - ziyimfuneko kwiinkqubo ezisasazwayo.
Idatha ebuthathaka okanye ukusetyenziswa kwememori kakhulu: Kukho izizathu ezilungileyo zokufuna ukutshintsha imbali yeGit. Kule post yebhlog , ndachaza indlela yokucoca iifayile kwimbali yeGit usebenzisa iBFG . Inqaku elibuthathaka le-BFG kukunqongophala kwenkxaso yeendlela ezithe ngqo , ngoko awukwazi ukususa ngokuthe ngqo iifayile okanye iifolda kwiifolda ezisezantsi ukusuka kwimbali. Ngaloo nto, lixesha lokujonga ezinye izisombululo.
...tl;dr: Seta ngesandla ixabiso okanye amaxabiso angagqibekanga we WP_MEMORY_LIMIT
/WP_MAX_MEMORY_LIMIT
ayinasiphumo ukuba WP_MEMORY_LIMIT
/WP_MAX_MEMORY_LIMIT
ngaphantsi okanye elilingana nomda wenkumbulo ye-PHP (emva koku memory_limit
ebizwa) yi. Zisetyenziselwa ukuseta amaxabiso aphantsi kakhulu memory_limit
ngamandla ukuya kubuncinane obucetyiswayo.
Ukuba ulungisela i-iframe yomntu wesithathu (njengewidget), awukwazi ukufikelela kumxholo wayo ngeCSS okanye iJavaScript (ngenxa yento ebizwa ngokuba yinkqubo yemvelaphi efanayo ). Nangona kunjalo, kukho inkqubo elula kakhulu yokuguqula nayiphi na ikhowudi (nakwezinye iifayile ezilayishwe kwakhona ngaphakathi kwe-iframe). Ukwenza oku, uhambisa i-URL ngeproksi yakho ye-PHP kwaye uguqule umxholo njengoko ufuna.
...I- ANTON yenye yezona zixhobo zidumileyo zokufunda zabafundi abakumabanga 1-10. Iklasi. Ukuqala kokujonga, umba wokufumana iingqekembe zemali ("iingqekembe") unokubonakala ungaqhelekanga kubantu abadala - kodwa iphinda iphindaphinde inkuthazo, ingeyiyo yabantwana bam kuphela. Ide igcine "umcamelo" omncinci weenkozo ongazichukumisiyo .
...Njengoko kuyaziwa, i-IBAN yaseJamani iqulethe ikhowudi yelizwe (DE), idijithi yokutshekisha idijithi ezimbini (ngokwe- ISO 7064 ), ikhowudi yebhanki (i-8-digit) kunye nenombolo ye-akhawunti (kuquka inombolo ye-akhawunti engaphantsi, Iidijithi ezili-10, ezilahlekileyo zizaliswe ngooziro abakhokelayo) kwaye ke ngoko inamanani angama-22. Ukubala idijithi yokutshekisha, ebizwa ngokuba yi-BBAN (ikhowudi yebhanki kunye nenombolo ye-akhawunti) kunye nekhowudi yelizwe lamanani \(1314\) yeJamani kunye nedijithi yokutshekisha \(00\) ) zenziwe.
...Ngobusuku bokugqibela bentsapho, umdlalo we- Dobble (kwi-Harry Potter Edition) waziswa ngenzondelelo etafileni ngabantwana. Emva kwe-5th elahlekileyo ngeenxa zonke (ngaphandle kwe-hit ebonakalayo yekhadi lam kunye nekhadi lokudlala) Ndaxelelwa, ngokumangala kwam, ukuba wonke umdlali unokuhlala efumana i-hit kuwo wonke umjikelezo. Kodwa ukungakholelwa kwam kwavunywa kuphela ngokulahleka okungaphezulu - abantwana babekhawuleza.
...Uyazi: Ixesha elilindelekileyo phakathi kweebhloko ezimbini zeBitcoin kumndilili \(10\) imizuzu. Ngoku wenza intengiselwano ebalulekileyo yeBitcoin kwaye ulinde ngolangazelelo ukubona ukuba kwaye xa ivela kwibhloko elandelayo:
e50bfacc95975a4e7545d83d8954645f
...Kwingxelo yeveki ye-RKI yomhla we-11.11.2021 idweliswe kwiphepha lama- 22 ukuba \(36\%\) yezigulane ze-corona ezingaphezulu kweminyaka engama-60 kwiyunithi yokhathalelo olunzima sele zigonywe ngokupheleleyo. Kweli qela lobudala, \(87\%\) bagonywe ngokupheleleyo ngeli xesha ngexesha (jonga iphe. 18).
...Kunye noXovi, isixhobo seSISTRIX yeyona nkqubo isetyenziswa kakhulu eJamani kwindawo ye-SEO. Isalathiso sokubonakala sizinzile njengomgangatho olinganayo wokubonakala kwephepha kukhangelo lukaGoogle. Iiparamitha ezibandakanyiweyo ekubaleni kwayo, umzekelo , zichazwe apha kwaye apha kwaye apha kwaye apha kwaye apha , kodwa i-formula echanekileyo yokubala ayipapashwa ngokusemthethweni. Oku kulandelayo ziziphumo zophando lwam lobuqu lweenyanga ezintandathu, ezingathi ziphelele okanye zichanekile.
...Amanani edesimali apheleleyo abizwa ngokuba ngamaqhezu edesimali, kuba amele amaqhezu ahlukeneyo anamandla eshumi kwidinomineyitha. Kunjalo ke:
$$\frac{z}{n} = \frac{q_1}{1} + \frac{q_2}{10} + \dots + \frac{q_k}{10^k}$$
nge \(k \in \mathbb{N}\) kunye \(q_k\) ne \(k-1\) -th indawo ekunene emva kwesiphumlisi.
...Ukusetyenziswa kwe- nvm kuyacetyiswa kufakelo olukhawulezileyo kunye nokutshintsha kweenguqulelo zendlela. Ukuba ufuna ukukhankanya ngokucacileyo inguqulelo yenode efunekayo kwiprojekthi, ubeka ifayile ebizwa ngokuba yi- .nvmrc kunye nenombolo yenguqulo ngqo (umz. "12.10.0") kwifolda efanayo apho ikhoyo iphakheji . Ukuba ke utshintshe kulawulo, ukwandiswa ilandelayo ifayile ~ / .bash_profile ngenxa bash isebenzise ukusetyenziswa umyalelo nvm, esimisela ngokuzenzekelayo olu guqulelo:
fe497e1c7f9f1547263eb3bffe15f9f6
...Ukusukela oko kuyilo lwewebhu oluphendulayo, abaphuhlisi bebebuza malunga nokwenzeka koyilo lwe-DOM ngokusekwe kubungakanani bayo kanye hayi kubungakanani beendawo zokujonga kwisikhangeli (ngoncedo lwemibuzo yeendaba ). Enyanisweni, imibuzo isikhongozeli (ekuqaleni imibuzo element) mhlawumbi umsebenzi CSS kakhulu bacela ukuba bakhangeli beencwadi ingekabinazo .
...Idatha ebuthathaka enjengegama eligqithisiweyo kufuneka ibe kwiifayile ze-env kwaye, ukuba kunokwenzeka, zingagcini kwindawo yokugcina izinto zeGit. Kodwa kungenzeka ukuba yenzeke kuye ngamnye kuthi kube kanye ngempazamo: Ngokukhawuleza upapashe iskripthi esihle seGoogle Maps JS API kwiGitHub Gists (njenge "esidlangalaleni") ngaphandle kokufihla ngempazamo izitshixo zabucala zeemephu ze-API.
...Ukuba ufuna ukusika umfanekiso ngoncedo lwe-SVG, ukusetyenziswa kweCSS- clip yepropathi kuyacetyiswa. Iskripthi esilandelayo sibangela izithintelo ezingathandekiyo: I-SVG inokugcinwa ngoncedo lwe-Illustrator, ungachaza (isihlobo okanye i-URL) ye-SVG (i-Chrome ixhasa ukuza kuthi ga ngoku ngokwendalo kuphela kwi-SVG) kwaye i-neckline nayo iphendula ngokupheleleyo.
...Ngoncedo lwe meta_query uphawu kudidi olunamandla lweWord_P_Query , iiposti zinokuhluzwa ezinamaxabiso athile kwimimandla ye-meta. Ukuba wenze i-meta enemigca emininzi (umzekelo ngoncedo lweeNkcubeko eziPhambili zeSiko ) kwaye ufuna kuphela ukufumana izithuba ezinexabiso elithile kule ndawo yahlulwe kukophuka kwemigca, ilizwe le- REGEX le-MySQL liyacetyiswa .
...Kwinqaku elandulelayo ndachaza indlela umntu anokuhlanganisa ngokulula oopopayi kwiAdobe Animate kwiwebhusayithi ngokudlula ngaphandle kweAPNG. Kukwakhona indlela yemveli ngokuthumela ngaphandle kwe- canvas ye-HTML5 , kodwa nabani na osele esebenza nayo uya kufumanisa ukuba ibambekile kuyo yonke i-nook kunye ne-cranny (ayonelanga inkxaso ephendulayo, indibaniselwano enzima kwiwebhusayithi esele ikho, akukho manqanaba ahlukeneyo esakhelo sopopayi ngalunye, njl.).). Ithala leencwadi adobe-animate-embed libonelela ngoncedo apha.
...Ngokwesiqhelo, xa udibanisa iimephu zikaGoogle, usebenza neMephu yeJavaScript API , efuna isitshixo se-API kwaye inokubangela iindleko ezingafanelekanga ukuba zithathelwe phantsi ngamanani aphezulu okufikelela. Kukho iindlela ezizezinye ezinjengebhokisi yemephu okanye i- OpenStreetMap , kodwa okwangoku abaphumeleli ukwahluka kweempawu ezinikezelwa nguGoogle. UGoogle uqobo unikezela ngendlela ngaphandle kwesitshixo se-API ngomsebenzi owabelweyo, esinokuthi siwusebenzisele iinjongo zethu.
...Inkxaso yebrawuza yeefayile ze-PNG zoopopayi ngoku zilungile kangangokuba oopopayi abenziwe nge- Animate CC banokukhutshelwa ngokulula kwi-APNG emva koko bafakwe kwiwebhusayithi kwithegi elula ye- <img>. Olu luhlobo olulula nolulungileyo kwindlela yokupapasha kwi-Animate CC, evelisa iJavaScript.Amanyathelo aza kuthathwa achazwe apha ngezantsi.
...Ukuba ufuna ukwandisa WordPress wophendlo lweenkobe kunye, umzekelo, amasimi meta, uyacebiswa ukuba jonga kwi agxothwe okucoca . Iiposti_earch yokukhangela iyacetyiswa ukuze ubuhedeni buqhubeke nokusebenza kwaye nokuphuculwa kwexesha elizayo kukhangelo kungarhoxiswa . Ngoncedo lwe- REGEXP kunye nemisebenzi ye- ExtractValue , le khowudi ilandelayo yandisa olu phando ukuba lubandakanye iiposti ezinelinye lamagama ophando afakwe kuwo onke amabakala emeta .
...Xa uKurt Gödel wapapasha iTheorems yakhe edumileyo yokungazaliseki ngo-1931, yagungqisa iziseko zengqondo yemathematika: Waphikisa ukuba zonke ii-axioms ezinokusekwa njengesiseko ezinokwenzeka ngokuqinisekileyo azigqibekanga ukuze zingqine zonke iingxelo ngamanani-kwaye wayitshabalalisa loo nto Iphupha likaHilbert lokungqina ukungqinelana kwethiyori yezibalo.
...Ngaphandle kwako konke ukukhuselwa kwedatha, i- WhatsApp iseyeyona nto iyintandokazi yomthunywa waseJamani. Ukongeza kwi- App ye-WhatsApp yoShishino olukhethekileyo, i-Facebook ikwenze i-interface esemthethweni, i-API yeShishini yeWhatsApp, ukuyenza ukuba inomdla ngakumbi kwiinkampani. Ukuba ufuna ukuthumela imiyalezo ye-WhatsApp ngokwenkqubo yesicelo sakho sewebhu, zikho nezinye iindlela.
...Ukuba usebenzisa izinto ezinje ngokugqume (okungumgaqo kumaxesha e-GDPR) kwaye ufuna ukuthambisa indawo esemva kokugqume ngaphezulu, umzekelo, uhlala uhlangabezana nengxaki yomxholo wokuxinana . Umzekelo, ukuba unezinto ezibekwe ngokupheleleyo okanye kwindawo emiselweyo, baya kuthi ngequbuliso baboniswe ngokwahlukileyo ngaphandle kwesihluzi esisetyenzisiweyo. Kodwa kukho isilungiso.
...Awunyanzelekanga ukuba usebenzise isixhobo esinamandla njengeGoogle yokwandisa uvavanyo olulula lokwahlulahlula i-URL, ungasombulula i-Apache nge .htaccess. Le khowudi ilandelayo isasaza iindwendwe zayo ngokulinganayo kuzo zombini ezi nguqulelo zamaphepha amabini https://vielhuber.de/test1.php (umahluko 1) kunye https://vielhuber.de/test2.php (umahluko 2). I-randomization isekelwe kwixesha langoku lomncedisi.
...Iibakaki ezisongekileyo zisetyenziselwa ukubhalwa kweenkcazo zomsebenzi ngokwahlulahlula amatyala. Silandela umbuzo olula wokuba lo mmeli ungasuswa na kwaye umsebenzi ungancitshiswa ube ngumbhalo onokuwenza ngaphandle kwawo. Umzekelo, umsebenzi
$$f: \mathbb{R} \to \mathbb{R}, f(x) = \left\{\begin{matrix} 42, & \text{falls } x = 0 \\ x, & \text{sonst} \end{matrix}\right.$$
ngoncedo lweendlela ezine ezisisiseko zezibalo usebenzisa igama lomgca omnye?
...Xa ujonga idatha kwiiSpredishithi zikaGoogle, umntu ungena engxakini yokuba \(x\) -axis ayinakho ukuzalisa ngokuzenzekelayo izithuba ezilahlekileyo kumaxabiso okubhaliweyo (njengakwiiveki zekhalenda). Ukusombulula ingxaki, uvelisa uthotho lwemihla eqhubekayo, ubale iiseli ezizenzekelayo uze ujonge iimali eziqokelelweyo.
...Njengengxenye yelifu lakhe likaGoogle, uGoogle unikezela ngeGoogle API yoGuqulelo ngesiseko sendleko esisekwe kusetyenziso. Kukho i- API engenamaphepha enokusetyenziswa ngaphandle kwesitshixo , kodwa esalayo ukusebenza emva kwezicelo ezimbalwa. Xa usebenzisa umsebenzi wokuguqulela iwebhusayithi kwiGoogle Chrome, kuyabonakala ukuba amaphepha anokuguqulelwa kumgangatho olunge kakhulu ngaphandle komda obonakalayo.
...Ukuba uqhagamshela iGithub noMqambi , kuya kufuneka unike inombolo yenguqulo nge- tag tag . Umyalelo olandelayo womgca wokuyalela umisela umhla wangoku kwaye uwonyuse ( ngokweSemVer ) ngenombolo yenguqulo. Umzekelo, uguqulelo 1.1.0 lulandela emva ko-1.0.9. Ukuba akukho tag inikiweyo, ingxelo iphawulwe ngokuzenzekelayo nge-1.0.0. Izixhobo ezinje ngokuthambeka okanye iihuku ze-git ziyayinqamlela le ntlango yeesimboli.
8cd852c96ec1e60e8a5ac1f3614b2397
...Ngelishwa, i- MySQL ayibonisi ALTER TRIGGER umsebenzi. Ukuhlela i-trigger esele ikho, kufuneka uqale uyicime emva koko uyihlaziye kwakhona. Isiteyitimenti seCREATE TRIGGER sinokufundwa ngokungathanga ngqo ngokusebenzisa ulwazi_schema Oku kusivumela ukuba sitshintshe izinto ezibangela ukudlula ngendlela. Ukwenza oku, wenza utshintsho lwakho kwisiphumo somyalelo olandelayo WOKUKHETHA (tshintsha indawo yogcino lwedatha kwaye uqalise igama kwangaphambili) kwaye wenze lo mbuzo.
...VanillaJS ibe nangokomyinge igqala jQuery phantse kuzo zonke iindawo ukususela ES6 kwaye ngoku kude kunathi. Ke kuyabhatala ukuhambisa ngokuthe ngcembe ikhowudi yelifa ususe kwi-jQuery. Nangona kunjalo, kuya kufuneka ulumke xa usenza utshintsho lweziganeko. Umzekelo, document.addEventListener akuthethi ukuqala kwi jQuery.change () . Olu luhlu lulandelayo lushwankathela amanqaku akhethekileyo.
...Ukusekwa kweicookies zizikripthi zakho okanye zomntu wesithathu kunokulawulwa kakuhle ngoncedo lwe-PHP kunye neJavaScript. Nangona esi ayisosisombululo saneleyo sokuphunyezwa kwezisombululo zecookie emva kwesigwebo senkundla ngokuchasene nePlanethi49 (apha kubalulekile ukuba izixhobo zokulandela umkhondo ezinje ngeGoogle Analytics zingalandeleli kwaye ngenxa yoko zingaseti naziphi iicookies), inokuba sengqiqweni ukuba mhlophe ngokubanzi / uluhlu lwabamnyama cookies.
...Ukuze wonge umbane okanye unciphise imeko yakho yokujonga esweni, kuyacetyiswa ukuba uzikhuphe ngokupheleleyo izixhobo ezingasetyenziswanga kwikhompyuter yakho. Izixhobo ezinjengebhokisi yesandi okanye ii-webcams zinokusebenza / zingasebenzi ngendlela yeklasikhi usebenzisa umphathi wesixhobo. Yonke le nto iyasebenza ngeskripthi. Indlela esemgangathweni yokwenza oku yayiqhele ukuba yi- devcon . Windows 10 ngoku inika indlela elula yokwenza oku ngePowerShell .
...I-Skype inomsebenzi omnandi, ofihliweyo: kwimeko yosasazo lwevidiyo, imvelaphi inokufiphala ngokuzenzekelayo ngokunqakraza kwiqhosha levidiyo kwaye usebenzise umsebenzi we " Blur my background ". Ngoncedo lobukrelekrele bokuzenzela, oku kuyasebenza kunye nayiphi na ikhamera nangaphandle kolwazi olunzulu. Yonke le nto ijonge ngakumbi kubuchwephesha kwaye ifihla izinto zabucala okanye ezingabalulekanga ngasemva.
...Ii-SVG zidlala indima ephambili kwiwebhu yanamhlanje. Abaphelelanga kuphela kwifonti ye icon ye-icon, kodwa banikezela ngamathuba okuphatha nge-CSS okanye ngeJavaScript. Ukuba ufuna ukugcina i-vector graphic yewebhu ukusuka kwi- Adobe Illustrator njenge-SVG, kuya kufuneka wenze useto ukunqanda imigibe kunye nokunciphisa ixesha lokulayisha, endiza kuliveza kwinqaku elilandelayo.
...Iprojekthi ye-Euler luthotho lweengxaki ezinomdla zenkqubo, zihlala zinemvelaphi yemathematics. Iingxaki zihlala zibekwa ngohlobo lokuba ii-algorithms ezinobunkunkqele kufuneka ziphuhlisiwe ukulungiselela ukufezekisa injongo ngexesha elifanelekileyo lokubaleka. Namhlanje sisombulula ingxaki ye-15: Iindlela zeLatice , apho unokufumana khona isisombululo ngeendlela ezilula zokudibanisa.
...I-WordPress iphumeze uhlaziyo lwangemvelaphi ngokwendalo ukusukela kuguqulelo 3.7 kwaye lwasebenza ngokuzenzekelayo ukukhutshwa okuncinci. Ngoncedo lwezihluzi, unokulawula indlela yokuziphatha ngokuchanekileyo, yintoni kanye kanye ehlaziywa ngokuzenzekelayo. Ukufakwa ngokusisigxina, okuzenzekelayo ngokupheleleyo kwazo zonke izinto ezincinci, ezinkulu, iplagi, umxholo kunye nohlaziyo lokuguqulela akujoliswanga, kodwa kungenziwa ngokulula ngenye indlela.
...Kuba website ezisekelwe WordPress , Joomla okanye Laravel , umzekelo, yaye akukho umsebenzisi-ngqo, uyacebiswa ukuba onke amaphepha kwi cache static HTML kwaye kutsha nje i cache ngesandla (okanye ngokuzenzekelayo) ukuba kukho utshintsho kwi somva. Nangona kunjalo, ukuba iphepha linomxholo onamandla oxhomekeke kwiseshoni kunye neicookies okanye kulwimi nakwindawo, i- OPcache ilungile .
...Ukuze wandise iifomula kuzo zonke iikholamu ngaphakathi kuGoogle AmaSpredish, sicebisa ukuba sisebenzise umsebenzi we- ARRAYFORMULA . Ngelishwa, oku akusebenzi ngokudibeneyo neminye imisebenzi ebalulekileyo enje nge- QUERY okanye INDIRECT , yiyo loo nto kukho inkqubo egqibeleleyo yomgaqo ngoncedo lweGoogle Apps Script okanye, kungenjalo, ukukopa ngesandla ifomula ukuya kumgca wokugqibela.
...Ukuphazamiseka kukaSimpson yenye yezinto eziqondakala ngokulula kwaye kwangaxeshanye izinto ezimangalisayo kumanani. Kuyenzeka nanini na xa amaqela edatha ebonisa imeko ethile, kodwa loo meko iyahlehla xa amaqela edityanisiwe. Ngoncedo lomzekelo olula, indida inokuqondwa kwangoko.
...Umphathi weThegi kaGoogle uzinzile ngokwendlela esemgangathweni yokuhlanganiswa kwezikripthi zokulandela umkhondo. Ngale ndlela, kwelinye icala, uxanduva (ukuthengisa kwi-Intanethi ngokuchasene neenkqubo) zahlulwe ngokucocekileyo kwaye kwelinye icala, ungaseta ngokukhawuleza kwaye uguqule ukulandela umkhondo ngejelo lokuhambisa elongezelelweyo. Nazi iingcebiso ezimbini ezincinci zokuseta ezibangela.
...Ukusuka e-FRITZ! OS 07.10 ukubheka phambili, ukuba i-intanethi iyasilela, i-FRITZ! Ibhokisi inokusebenzisa okwethutyana indawo engenazingcingo yeselfowuni njengokubuyela umva. Umsebenzi ufihliwe phantsi kwe- Intanethi> Idatha yokufikelela> Umboneleli nge-Intanethi> Ukufikelela okukhoyo ngeWLAN . I-FRITZ! Ibhokisi emva koko isebenza njenge-router ngokwayo kwaye ibonelela ngenethiwekhi kunye noluhlu lwedilesi yayo. Xa i-intanethi ifumaneka kwakhona, umane usete useto kwakhona. Kwafuneka ndikhangele ukhetho lwe- WLAN> Inethiwekhi yerediyo> 2.4 GHz frequency band esebenzayo kunye ne- Intanethi> Idatha yokufikelela > IPv6> IPv6 inkxaso esebenzayo .
...Intyatyambo yoBomi iyinto eqhelekileyo, efana neentyatyambo, ipateni yejiyometri efunyenwe kwiitempile, kwimibhalo ebhaliweyo, kwaye kangangexesha elithile kwinkcubeko ye pop iminyaka engamawaka. Ipateni ikwadlala indima kwi-esotericism. Asikukhathaleli konke oku okwangoku kwaye sigxile kulwakhiwo olulula lwejometri, enezithuba ezininzi ezilinganayo, ezijikelezayo.
...Unxibelelwano lwe-imeyile olunxibeleleneyo-ngaphandle kwazo zonke iziprofeto zentshabalalo ezijikeleze iSlack kunye neDiscord- eyona nto iphambili kunxibelelwano kwicandelo leshishini kwihlabathi liphela. Ukongeza kwi- Inbox Zero evela eMerlin Mann, zininzi ezinye iindlela zokujongana nezikhukhula zemihla ngemihla ze-imeyile, kubandakanya oko kubizwa ngokuba kukulibaziseka kwe-imeyile, okt ukuhanjiswa okucothayo kwe-imeyile.
...Kwezi ntsuku zimbalwa zidlulileyo, bendiphanda lo mbuzo ulandelayo kwiStackExchange malunga nomoya opheleleyo . Sijonge ifomula evaliweyo yolungelelwaniso lwe \(n\) -th element in the integer spiral elandelayo, esukela kwimvelaphi ngaphandle nangaphezulu kwaye iqhubeke iye kubunzulu:
.. 9 10 11 12
23 8 1 2 13
22 7 0 3 14
21 6 5 4 15
20 19 18 17 16
...Xa usebenza ne- Google AmaSpredishithi , kulungile, imigaqo esekwe kubasebenzisi yokuhlela iiwekhishithi, iikholamu kunye nemiqolo inokuchazwa ngaphakathi kwespredishithi. Ngelishwa, akukho ndlela yokuthintela amalungelo okufunda. Nangona kunjalo, oku kunokuba luncedo kakhulu kwiimeko ezininzi. Ke ubonisa abathengi bakho kuphela ezo tikiti zibachaphazelayo okanye abasebenzi kuphela iiprojekthi abasebenza kuzo.
...npm ngumphathi wephakheji emiselweyo yeNode. I-Facebook kudala isenza esinye isisombululo solawulo lwephakheji ebizwa ngokuba yiYarn . Umsonto ubonakala ngathi uyanyamalala kancinci kufundo lweGithub njengesisombululo esisemgangathweni kunye nezibalo kwindawo esemthethweni zibonisa ukuba kuphela iqhezu leephakeji ezenziwa nguYarn. Nangona kunjalo, kufanelekile ukucinga ngaphandle kwebhokisi.
...
Inkqubo yokusetwa kweetafile \(\TeX\) yaphuhliswa ngo-1977 nguDonald E. Knuth owaziwayo. Iphakheji yesoftware \(\LaTeX\) esemgangathweni xa kusenziwa amaphepha enzululwazi. Ngezi zixhobo zimbini zilandelayo, esele zenziwe iiPDF kunye namanqaku abhalwe ngesandla anokuguqulwa ngokuzenzekelayo abe yi-TeX. Iziphumo zithembisa kakhulu.
Impikiswano yokulinganisa kukaNick Bostrom ilula ngokulula kwaye icacile. Ayizami ukungqina ukuba siphila kwimodeli, kodwa endaweni yoko yenza izinto ezintathu ezinokwenzeka, enye yazo inokuba iyinyani. U-Elon Musk ukwathethelela ithisisi efanayo, eyenza ukuba umbono uwazi kuluntu ngokubanzi. Iphepha elisemthethweni lingaphezulu kweminyaka eli-14 kwaye amaphepha amaninzi nje amafutshane. Isiteyitimenti esiphambili kulula ukusiqonda kwaye sihambelana.
...I enamandla WPML plugins yeelwimi kunye Advanced Custom Fields ukuba amasimi akho na umgangatho izixhobo kufakelo ezininzi. Kuyacaphukisa xa ukungasebenzi kakuhle kunye nelahleko yedatha zenzeka ngokudibeneyo. Iingxelo ze-bug ngesihloko zineminyaka embalwa ubudala kwaye aziphendulwanga ( apha napha kwaye apha kwaye apha napha ). Ndijonge nje ingxaki.
...Kwiifowuni ezithile ze-Android, zombini i-Facebook kunye ne-Instagram izikhangeli ze-in-app (ukuza kuthi ga namhlanje) ziziphatha ngendlela engeyiyo ukuba umhlaba okhutshelweyo uchaze uphawu lokwamkela kwiphepha elibhengeziweyo okanye elidityanisiweyo. Iqhosha ke ngoko lalingenamsebenzi. Ukuba uvula iphepha ngaphandle, isikhangeli esiqhelekileyo ngaphandle kwenkqubo ye-Facebook, yonke into ilungile. Oku kuyacaphukisa (ngakumbi kuba bekuxelwe ixesha elide ), kodwa kungasonjululwa ngokusebenza.
...Izixhobo zokuphucula zikaGoogle Chrome ziphakathi kwezona zinamandla kwintengiso yesikhangeli. Iimpawu ezintsha zirhabaxa inyanga nenyanga, ethi iboniswe nguGoogle kwifom ecinezelweyo kuYouTube . Kodwa zihlala zizinto ezincinci ebomini ezivuyisayo. Ukuba ufuna ukucima izinto ze-DOM kuGoogle Chrome, ungakwenza oku ngeqhosha lokucima. Kodwa kuphela namhlanje ndiqaphele ukuba izinto ze-DOM zinokuhanjiswa ngokulula zisebenzisa ukutsala kunye nokuwisa:
...Golden rule kwindalo iphela git ngu: "Ngaba benze eselula, rhoqo". Ukuba ubusuku bebuthathe ixesha elincinci, okanye ukuba ufuna isishwankathelo semeko yangoku kwikhompyuter yakho, umyalelo uyakuthatha
d8a38f92d0baa14f9d4568826c13ad46
i "git status" yazo zonke iindawo zokugcina ezikhoyo kwifolda yangoku okanye nakweyiphi na incwadi eneenkcukacha kwaye inyusa amaxabiso kwisishwankathelo esihle:
...Xa ufuna bume yophuhliso eyiyo, Windows 10 inika izisombululo epheleleyo ezifana XAMPP , WAMP kunye MAMP , ufakelo lweenkobe ngesandla, kunye nezisombululo lweeHedfowuni ezifana Vagrant ( yeScotch Ibhokisi ) kunye Docker ( Devilbox , Laradock ). Kodwa ngenxa yeemfuno zam ezinje ngokuqwalaselwa simahla, izatifikethi ze-SSL zekhadi lokwenyani, ukufikelela kuzo zonke izixhobo zokuphela kwenethiwekhi yendawo kunye nokuzinza okuphezulu kunye nokusebenza, zonke izisombululo zisilele-ngaphandle kwesinye.
...Elinye lamandla kaLaravel sis syntax yayo entle. Ukuba uneemodeli ezininzi kunye nobudlelwane eLaravel (ngenxa yeetafile ezininzi kwindawo yogcino lwedatha), ukuwela kungaphelela kwikhowudi encinci. Ekuhambeni kwexesha, izandiso ezincinanana ezintathu ziye zangqina ngokwam, endinqwenela ukuzazisa ngokufutshane apha ngezantsi. Sisebenzisa nje ilifa elithile, iindlela zomlingo kunye nokuqokelelwa kwesiko.
...Ulawulo lwenguqulo yeGit ngoku lusemgangathweni phantse kuyo yonke iprojekthi yewebhu nakwimeko zonke (kubandakanya nemveliso). Git usoloko kudala .git olusezantsi kwaye ukuba oku kwinqanaba incwadi zoluntu website, unako ukufikelela esidlangalaleni iifayile ezibuthathaka (umzekelo, ebiza /.git/logs/HEAD ibonisa kwenza yokugqibela) . Oku kuchaza ngokweenkcukacha indlela onokuthi ulibambe ngayo iqela lesithathu (!) Indawo yokugcina izinto zeGit ngaphandle koluhlu lolawulo.
...Kwiposti yebhlog endala Ndichaze indlela yokubamba iNode.js simahla usebenzisa uHeroku . Ngoku ndiza kukubonisa indlela onokufaka ngayo i-Node.js , npm kunye noMqambi nakweyiphi na enye indawo ekwabelwana ngayo ngaphandle kwamalungelo engcambu ngemigca embalwa yekhowudi. Ngayo unokufaka iiphakeji, usebenzise usetyenziso lweVue.js okanye qala nje iseva ye-Express.js. Sisoloko sisebenza kwisikhombisi somsebenzisi kwaye sisebenzisa i- nvm -iNode Package Manager.
...Kwi-PHP <7.2 unokwenza uluhlu olungenakufikeleleka ngokufanelekileyo:
91367d1c4636fd753b381406024e303c
Unokwenza ezinye izinto ngayo.
...Lo myalelo ulandelayo umisela uqhagamshelo kwiseva nge-SSH, uqhuba eminye imiyalelo (umzekelo, utshintsho kwisikhombisi kunye nokuthumela imeko ye-git ) kwaye ushiye iqokobhe livulekile. Ifayile .bashrc ilayishiwe, eyenza ukuba iisekseli ezinemibala. Icebo kukugcina ifayile yethutyana / tmp / initfile ngemiyalelo oyifunayo, ukuqala i-subshell (kwimeko yethu bash) ngomyalelo --init-ifayile. Ngaphakathi kule fayile, ifayile enye iyacinywa kwakhona kwangoko ukuze ingashiyi naluphi na umkhondo.
...Ukuba ubandakanya ukuqhuba kwenethiwekhi kwiWindows Explorer, oku akusebenzi kwinkqubo-ebanzi, kodwa kuphela kwiakhawunti yomsebenzisi yangoku. Oku kuthetha ukuba awukwazi ukufikelela kule drive yenethiwekhi kwisicelo esisebenza namalungelo olawulo. Oku kungatshintshwa ngokulula: Yenza i-DWORD entsha (i-32 bit) ene-EnableLinkedConnections enexabiso 1 kwirejista phantsi kwe- HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Policies \ System kunye nokuqala kwakhona. Iidrayivu ezihlanganisiweyo zenethiwekhi zibonakala kuyo yonke indawo.
...Ukuba ufuna ukufikelela ngokukhawuleza kwifolda yendawo phantsi kweWindows oyisebenzisa kaninzi, unokuyinika eyakho ileta yokuqhuba. Kukho indlela ejikelezayo kuphela "Dibanisa idrive yenethiwekhi", kuba awunakucacisa umendo C: \ Abasebenzisi \ uDavid \ Ukhuphelo, umzekelo. Njengesisombululo, ngenisa into ebizwa ngokuba sisabelo solawulo kwidrive, ekhoyo ngokungagqibekanga kwifolda nganye: Kumzekelo ongentla apha iya kuba \\ localhost \ c $ \ Abasebenzisi \ David \ Ukhuphelo .
...Isele liyaxhuma lijikeleze umgca-manani uze uzame ukulibamba. Ukutsiba kunye nokubamba kuhlala kuyenye into. Isele liqala kwindawo \(s \in \mathbb{Z}\) kwaye ngalo lonke ixesha lihamba litsiba umgama \(z \in \mathbb{Z}\) (ukuba \(z>0\) , liyaxhuma Ekunene, kungenjalo ukuba ngasekhohlo). \(z\) iyafana kuwo wonke umtsi. Ukuqhawula kuqulathe imeko yenani elipheleleyo. Umntu akazi nokuba \(z\) okanye \(s\) . Sibonisa ukuba ikhona indlela yokusoloko ubamba isele.
...Ayisiyiyo kuphela xa usebenzisa i- npm phantsi kweWindows apho ufumana umda ngoku osele uneminyaka engama-30 ubudala, ethintela iindlela kwiifolda nakwiifayile ukuya kubalinganiswa abangama-255. Le asiyompazamo ye-NTFS kodwa yi- LFN . Oku kukhokelela kwiibugs ezicaphukisayo kunye nokungahambelani phakathi kweenkqubo zokusebenza. Ngamaxesha eWSL le yimeko ebuhlungu, ngethamsanqa unokuzilungisa ngokwakho kwirejista kangangexesha elithile.
...Kwisakhelo se-PHP iLaravel ngaphakathi kweendawo ezinemveliso , abasebenzi kunye nabaphathi baqinisekisa ukuba imisebenzi egcinwe eRedis, umzekelo, iyenziwa. Ukuba ufuna ukuzimela ngokupheleleyo kule ndawo yangaphakathi, ungasebenzisa umqhubi wokuvumelanisa ukuhlala usenza imisebenzi ngokukhawuleza. Oku kunengxaki yokuba inkqubo yangoku ye-PHP ivaliwe kwaye isicelo sixhomekeke de umsebenzi wenziwe.
...Ngoncedo lweJavaScript analytics.js evela kuGoogle Analytics, nayiphi na imicimbi kwiiwebhusayithi inokulandelelwa. Ezi ziganeko, umzekelo, umlinganiso ochanekileyo wobude bokuhlala, ubuninzi bescroll ubunzulu beendwendwe okanye ezinye izinto ezinje ngokuhambisa iifom. Ukuba kamva ufuna ukuvavanya imikhankaso yentengiso okanye ukwenza uvavanyo lwe-A / B, umzekelo, wenza iiprojekthi ekuthiwa ziithagethi.
...Ukunikezelwa kwecala lomncedisi ngoku kuyinxalenye ye-repertoire esemgangathweni yewebhusayithi kunye nokusetyenziswa. Izikhangeli ezinje ngeGoogle Chrome nazo zihlala zisebenza ngokufihlakeleyo kangangoko ukuze kuncitshiswe amaxesha okulayisha kweefowuni ezongezelelweyo. I-cache invalidation le CSS iifayile / JS / Umfanekiso kusonjululwa ngoncedo mod_pagespeed , Iphelelwa / Coupe ulawulo ephepheni, a cache ibonakale okanye nejonga kakhulu kwaye ngqo kwi parameters ngamnye emva igama lefayile.
...Umboneleli weBitbucket akaboneleli (nkqu nakwimirhumo esekwe kwimirhumo kunye nePremiyamu) ukubakho kokugcina amaqhosha e-SSH ngamalungelo okubhala kwinqanaba lokugcina. Ukugcina isitshixo sakho sobuqu kwi-server yemveliso ayisiyiyo inketho, kungenjalo unokufikelela kuzo zonke ezinye iiprojekthi osebenza kuzo ngoku ukusuka apho. Kukho okubizwa ngokuba ngamaqhosha okufikelela , kodwa ezi zivumela kuphela amalungelo okufunda.
...Izixhobo ezivela eSysinternals nguMark Russinovich akufuneki zilahleke nakweyiphi na ikhompyuter yeWindows. Ukuba uhlala ufuna inguqulelo yamvanje, unokuyidibanisa njenge drive yenethiwekhi. Umyalelo wokusetyenziswa komnatha s: \ live.sysinternals.com \ DavWWWRoot kwilayini yomyalelo yanele (njengomsebenzisi oqhelekileyo). Ke izixhobo ezimnandi ezinje nge-PsList, i-PsKill okanye iNkqubo yokuHlola iyaphatheka kwi-drive S.
...Xa ukhupha iiveki zekhalenda kumhla othile, kuya kufuneka ulumke kwiiSpredishithi zikaGoogle (nje ngeMicrosoft Excel). Umsebenzi = IVEKI YEKHALENDA (NAMHLANJE ()) ubala ngokusebenzisa umgangatho waseMelika, osoloko unikwa usuku lokuqala lonyaka kwikhalenda yeveki yoku-1. Oku kuchazwa ngokwahlukileyo eJamani: Nantsi iveki yekhalenda yokuqala evekini apho ubuncinci iintsuku ezi-4 ziwela kunyaka omtsha. KuGoogle AmaSpredishithi ungayisombulula ingxaki (phakathi kwezinye, iindlela ezinomdla ezinje = -2; 7) -9)) / 7) kunye ne = modified IVEKI YEKHALENDA (NAMHLANJE (); 21) ) ngokulula ngomsebenzi owenziwe ngokukodwa = ISOWEEKNUM (NAMHLA ()) .
...Kuba masibethele ngokufihlakeleyo, iiwebhusayithi ezifihliweyo ngoku zikumgangatho. Nokuba uphuhliso lwasekhaya, izatifikethi ze-SSL ziye zaba yinto ebaluleke kakhulu (umzekelo, navigator.geolocation ifuna ukubethela kwe-SSL kwalapha ekhaya). Ukusukela inguqulelo yama- 58 ye-Chrome, inkxaso ye-CN (Igama eliQhelekileyo) icinyiwe kwaye i-SAN (Igama EliliGama eliNgezelelweyo) yenziwe yanyanzelwa. Ngenxa yoko, Chrome ngesiquphe akusekho wamkela bonke ngokuqhelekileyo SSL iziqinisekiso wadala.
...Qwalasela abantu ababini \(A\) kunye \(B\) abangazalwanga kwangalemini inye kwaye \(A\) bancinci kuno \(B\) . Bonisa ukuba minye iminye iminyaka emibini yobudala \(a,b \in \mathbb{N}\) , esebenza kuyo: \(2\cdot a = b\) . Saqala ukuseta \(d \in \mathbb{R}^+\) njengomahluko wobudala phakathi kwe \(A\) kunye \(B\) ekuzalweni kwe \(A\) nge \( d = d_0 + d_1 \) , \( d_0 \in \mathbb{N}_0, d_1 \in \mathbb{R}, d_1 \in [0;1[\) . Ngoku sijonga inqaku elingenakuphikiswa ngexesha \(x \in \mathbb{R}^+\) emva kokuzalwa kwe \(A\) nge \(x = x_0 + x_1\) , \(x_0 \in \mathbb{N}_0, x_1 \in \mathbb{R}, x_1 \in [0;1[\) .
...Kuba iGit ayazazi zincwadi , ziifayile kuphela, izinto ezingenanto kwifolda ezingaphelelanga kwindawo yokugcina izinto. Nangona kunjalo, kuba izikhokelo kunye neeprojekthi ezininzi zizifuna ngokupheleleyo, kufuneka ziphelele apho. Isiqhelo esiqhelekileyo kukwenza oko kubizwa ngokuba yindawo yokugcina iifayile (ehlala ibizwa ngokuba yigitkeep), ecacisa gca isakhiwo sefolda. Ezi fayile zinokwenziwa ngokulula kwaye, ukuba zifunwa, zikwaqinisekisa ukuba ezinye iifayile ezikwiifolda azihoywa.
...Ukusingathwa kweNode.js akukasasazeki kakhulu, ngakumbi kumazwe athetha isiJamani. Inkampani yamafu yaseMelika uHeroku ibonelela ngoncedo apha-kwaye simahla . Uhlala uqaphela iparadigm "Yakha ii -apps ... hayi iziseko zophuhliso" kwaye akunangxaki. Njengomzekelo, siphumeza umsebenzi omncinci wekhron ngokusekwe kwiPhantomJS , eqhekeza iwebhusayithi yonke imihla kwaye ithumele isihloko sephepha nge-imeyile.
...Ukongeza kwimpikiswano edibeneyo , uGeorg Cantor uphuhlise umsebenzi wokubambisa weCantor \(\mathbb{N}^2 \to \mathbb{W}, \quad c(x,y) = \binom{x+y+1}{2}+x = z\) , edibanisa nawaphi na amanani amabini \(x,y \in \mathbb{N}\) kwinani elitsha \(z \in \mathbb{N}\) . Umzekelo, \(c(3,4)=\binom{3+4+1}{2}+3 = \binom{8}{2}+3=\frac{8!}{6!\cdot 2!} +3 = 31 = z\) ikhowudi eyahlukileyo yamanani \(3\) kunye \(4\) kwinani \(31\) . Bonisa: Iseti yamaxabiso \(\mathbb{W} = \mathbb{N}\) , okt \(z\) athatha onke amanani endalo.
...\(r_1 = 6370km\) umhlaba (njengebhola \(r_1 = 6370km\) ) kunye ne-ertyisi (njengebhola \(r_2 = 2mm\) ) \(r_2 = 2mm\) intambo phezu kwe-ikhweyitha ukuze ilale nkqo kumphezulu. Ngoku uzolula zombini iintambo ngemitha enye nganye. Zombini ezi ntambo kufuneka ngoku zilaliswe ngokupheleleyo kwi-ikhweyitha kwakhona - azisalali phantsi ngaphezulu, kodwa zindanda ngaphezulu kwe-ikhweyitha. Iphakame kangakanani intambo ngaphezu komhlaba, iphakame kangakanani ngaphezu kwepea?
...Yeyiphi iipesenti zexesha losuku ezi zontathu izandla zewotshi ye-analog kwisiqingatha esifanelekileyo sedayala? Kuqala, jonga kwisandla seyure, esikwisandla sasekunene rhoqo kwiiyure ezili-12 ezingama-24 (50%). Ukusukela ngeli xesha, isandla somzuzu siya kuba kwicala lasekunene kwiiyure eziyi-6 ukuya kwezi-12 (25%). Kwezi yure zintandathu, isandla sesibini sichitha iiyure ezi-3 kwicala lasekunene (12.5%).
...ILaravel yenza unxibelelwano kunye nesiseko sedatha kube lula kakhulu nge-Eloquent. Xa usebenza noBudlelwane obuThile , xa ubiza izinto eziguqukayo ezinamandla (ngoncedo lweendlela zobugqi ze-PHP), kuya kufuneka uqaphele ukuba iimeko zeemodeli azibonisi utshintsho olutsha, kodwa zigcinwa ngokusisigxina xa zibizwa okokuqala.
...Xa ubamba iGit kwiBitbucket, kukho umda onzima we-2 GB-ukuba oku kugqithisiwe, unokufikelela kuphela kwindawo yokugcina kuphela. Ukuthintela oku, umzekelo, ungasusa ngokuzithandela iifolda ezinkulu okanye iifayile kwifayile yakho. Kodwa nakwezinye iimeko (ukuba idatha yokungena ingene kwimbali okanye ii-node_modules zityibilikile zibuyele enkosini) kuya kufuneka uphinde usebenzise imbali yeGit, ngokuchasene nendalo yayo.
...Ngamaxesha e -Encrypt , iiwebhusayithi ezifihliweyo ngoku zikumgangatho. Kodwa ikhadi lasendle okanye izatifikethi ezandisiweyo ezinokuqinisekiswa komnini ngokuthembekileyo nazo ziyimfuneko rhoqo. Umboneleli weDomainFactory unikezela ngezatifikethi ze-SSL ezingabizi kakhulu ezinokusetyenziswa nangaphandle. Ukuseta kwi- IIS yangoku kuyaphumelela ngaphandle kwe- CSR ngoncedo lwe- OpenSSL . Koku kulandelayo ndiza kubonisa ngokufutshane ukuba ngawaphi amanyathelo afunekayo koku.
...UThomas M. Cover wabuza lo mbuzo ulandelayo omangalisayo ngo-1987 ku "Vula Iingxaki Kwezonxibelelwano Nokubala": Umdlali \(X\) ubhala amanani amabini ahlukeneyo kunye nalawo akhethwe ngokungakhethiyo \(A\) kunye \(B\) kwimibini emibini eyahlukeneyo Ingcezu yephepha wayibeka phantsi etafileni. Umdlali \(Y\) ngoku ukhetha ngokungacwangciswanga elinye lala maqhekeza ephepheni, alibone inani kwaye ngoku kufuneka athathe isigqibo sokuba ingaba eli nani lincinci okanye likhulu kunelinye inani elifihliweyo etafileni.
...Xa umdlalo webhola uqala, ibhola ilele embindini webala kwaye emva koko ishukunyiswe ijikeleze ibala kangangemizuzu engama-45 ngokutshintsha nokujika. Ekuqaleni kwesiqingatha sesibini, ibhola iphinda iphinde ibekho embindini webala. Sibonisa ngeendlela ezilula ze-algebra emgceni yokuba inani elingenasiphelo lamanqaku kumphezulu lihlala likwindawo enye nasebusweni bokuqala okanye ngokuchanekileyo 2.
...Xa ulungisa iitemplate zeleyidi kwiLaravel 5. * uhlala ufumana imiyalezo engenantsingiselo ebhekisa kwiimbono ezigciniweyo. Kwixesha elidlulileyo, wonke umntu ebengcono: Umbono wokulungisa iphutha kuhlobo lwesi-4 wawunemisebenzi eluncedo ngakumbi kwaye wawubonakala umhle. Ngemigca embalwa yekhowudi ungafumana oku kusebenza ngoncedo lweehips ("iimpazamo ze-PHP zabantwana abapholileyo").
...Nokuba kungqinisisiwe, amaqabane okanye abathengi- zininzi iimeko apho ufuna ukubonisa iilogo ezininzi ecaleni ngokuvumelana. Ubungakanani beelogo ubukhulu becala abuhambelani. Uhlala ulandela ithumbu lakho lesisu kubukhulu bokumelwa kuyilo, kodwa kukwakhona indlela yokubala ethe ngqo yokumela ngokubonakalayo ngokulinganisa indawo yeelogo. Kumzekelo olandelayo ungakwenza oku ngemigca embalwa yeJavaScript.
...Xa usebenza nezinto eziguquguqukayo kwi-PHP nakwiJavaScript mihla le, umntu uhlala efumana umbuzo wokuba ngaba umahluko awunanto. Kuyimfuneko ukwazi imisebenzi yemveli kunye nolwahluko wokujonga iinjongo. Ngomsindo, akukho ndlela ilula yokujonga ukuba ngaba umahluko ukhona okanye awukho. Imatriki engezantsi ibonisa ukuba kuthetha ntoni oku. Nangona kunjalo, into oyifunayo inokuphinda ichazwe ngemisebenzi encinci yomncedisi.
...Nge sipgate.io, iSipgate yenze i-API enomdla yelifu apho uninzi lwayo lukhetha khona ngefowuni ye-Intanethi. Iakhawunti ayihlawulelwa, kwaye kukho inketho yokusetha nayiphi na inombolo yomthumeli simahla kwivenkile. Amaxwebhu avela ku-sipgate.io asenokwandiswa, kodwa ngokufunda kancinci kwi- Sipgate API esemthethweni unokukhawuleza uziqonde izinto ezinomdla.
...Iinkqubo zolawulo lwedatha ehambelana nolwalamano esekwe kwi-SQL zilungele kuphela imeko yokuphakama okanye imibuzo ephindaphindayo. Ezinye iinkqubo ezinje ngeArangoDB zingcono apha (bekukho intetho entle malunga noku kwiGOTO 2016 ). Kodwa unokuvelisa imibuzo ephindayo kwi-SQL ngoncedo lweentetho eziqhelekileyo zetafile kwaye ke ubuze umbuzo kwiitafile zomzali / zomntwana zakuzo zonke izinyanya kunye nenzala.
...Ngokwe w3techs.com , zijikeleze i-27.4% yazo zonke iiwebhusayithi kwihlabathi liphela ngoku ezenziwa ngoncedo lweWordPress . Kwiimeko ezininzi, ezi ayizizo iiblogi. I-WordPress ivelisa ngokuzenzekelayo ii-URLs, ezingasetyenziswanga rhoqo kwaye ivelise amakhonkco amaninzi afakwe kuGoogle kangangokuba umqhubi wewebhusayithi ebengenawo kwiscreen. Konke oku kunokwenziwa kungasebenzi ngomyalelo olula.
...Ukuba, njengam, ungena engxakini yokuphinda unike amagama amawaka eefom zentsimi, ikhonsoli yeJavaScript efakwe kwiAcrobat ilungile. Kule nto awunakwenza kuphela nayiphi na ikhowudi yeJavaScript, kodwa unokufikelela kuwo wonke umxholo ngaphakathi kwePDF (kubandakanya neefom zeefom). Kuba akukho msebenzi wendalo wokuphinda uthiye igama kwi-JS API, iifom zefom zikhutshelwa nazo zonke iipropathi kwaye zinikwe igama elitsha.
...Kwi-Shopware 5, ingxaki eyaziwayo ayikasonjululwa. Ngoncedo lweplagin, ingxaki inokulungiswa ngokulula okwangoku.
...Kukho ubungqina obuninzi bokungabikho kwamanani aphambili- i- theorem eyaziwayo ye- Euclid evela kwiNcwadi yeZinto ayilahlekanga nakweyiphi na ikhosi yeenqobo ezisisiseko. KwiAmerican Mathematical Monthly (khupha i-122) ngo-2015 uSam Northshield wapapasha ubungqina obuphantsi obunobunkunkqele ngohlobo lomgca omnye, endingafuni ukukubamba (ngamagqabantshintshi).
...Isinyanzelo somyalelo weWindows ongahlonitshwayo unokuqaqanjelwa ngokubonakalayo kumanyathelo ambalwa alula. Ke ngekhe uhlengahlengise umbala kunye nobungakanani bomgca wokuyalela, kodwa uphinde ukwandise ngokusebenza (ukwandisa i-buffer, ukufaka iseti enkulu yezixhobo ze-UNIX). Nangona isikhawulezisi somyalelo singasondeli kwiPowerShell 6.0 okanye entsha Windows 10 iBash Shell , ayifuni ukufihla imisebenzi yemihla ngemihla.
...Kwiinkqubo zolawulo lomxholo, ii-URLs azisoloko zilungiswa kwangaphambili kwaye ke azenziwanga ngokobalo ngaphambili (njengegalelo okanye into yemenyu), kodwa jongana nezinto ezivela kwindawo yogcino lwedatha. Ifana neWordPress ( njengoko kuchaziwe apha ) kunokwenzeka nakwiJoomla ukwakha izakhiwo ze-URL ezinamandla (ezizimeleyo kwinkqubo ye-alias yangaphakathi). Nokuba i- JRouter ingasetyenziswa apha- okanye ungasebenzisa i-liner enye kwi-.htaccess.
...Ngoncedo lweJavaScript, izikhangeli zangoku zingafunda kwaye zibhalele kwibhodi eqhotyoshwayo yomsebenzisi, okt banokuyisebenzisa. Itekhnoloji esisiseko sisigqoko esidala, kodwa kutsha nje ukuba uhlaselo ngakumbi nangakumbi (phantsi kwegama elithi "ColaJacking") sele lujikeleza kwinethiwekhi elisebenzisa eli thuba lomsebenzisi ongenamava. Ukuphunyezwa kweJavaScript yi-banal.
...Ukutshintshela iikholamu zetafile ze-SQL kuyinxalenye yereferensi esemgangathweni ene-MySQL- oku akukaxhaswa okwangoku ngePostgreSQL. Nangona i-wiki esemthethweni inikezela inqaku layo kwingxaki, ayibonisi sisombululo esisebenzayo esixhasa ukujonga, ii-indices kunye nezinto ezibangela. Udidi olulandelayo luyawenza lo msebenzi (kuzo zombini i-MySQL kunye nePostgreSQL) nokuba kukwilayini yomyalelo- okanye kungenjalo ngokuthe ngqo kwiLaravel 5.
...Ukuba ufuna ukuvula ngokukhawuleza umyalelo wolawulo kwifolda kwiWindows Explorer, cofa (inqanaba elinye phezulu) ngeqhosha lasekunene le mouse kwaye ubambe iqhosha leShift kwifolda emva koko ukhethe u "Vula umyalelo wokuyalela apha" kwimenyu yokuma. Ndisandula ukufumanisa enye, indlela ekhawulezayo xa ungaphakathi kwifolda: Apha ucofa umendo wangoku wefolda, chwetheza "cmd" kwaye uqinisekise ngeNgena.
...Ukuba usebenza ngeendidi ze-hierarchical (taxonomies) kwiWordPress, uyakuqaphela ukuba, kwelinye icala, ukuboniswa kweendidi ezitshekishwe ngasemva kuyadida kwaye kwelinye icala, izithuba azipheleli ngokuzenzekelayo kudidi lwabazali ukuba zibekwe kudidi lwabantwana. Zombini zinokulungiswa ngemigca embalwa yekhowudi kusetyenziswa inkqubo yehuku enamandla (ngokohlobo lwentshukumo kunye nefilitha).
...Ukongeza kwiimpawu ezintsha ezinje ngohlobo lokuthintela iintlobo zeedatha zesikali okanye ukusebenza okuphuculweyo , i-PHP 7 ikwazisa ulwandiso olutsha olunoluncedo. "Umsebenzi weSpacehip" ekugqibeleni uye wayenza kwilizwe le-PHP (Inkqubo kaRuby kunye nePerl beyazi ixesha elide). \($a <=> $b\) ubuya \(0\) ukuba kwaye kuphela ukuba zombini ii-opharetha ziyalingana, \(1\) ukuba ekhohlo inkulu kwaye \(-1\) ngenye indlela.
...Ukuba udibanisa i-PHP nge-FastCGI kwi-IIS 7.5, iskripthi ngasinye sikhutshwa emva kwemizuzwana engama-600 (okt imizuzu eli-10) ngokungagqibekanga. Utshintsho lokwahluka okwahlukileyo "max_execution_time" kwi-php.ini ayinampembelelo koku, kufuneka (kwakhona) uhlengahlengise useto lwe-FastCGI. IIS ibonelela ngonxibelelwano olululo lokulawula izinto ezifanelekileyo.
...Ithiyori yokufumana imeko ibandakanya imisebenzi emihle enezisombululo ezingahambelaniyo. Ukongeza kwingxaki yabantakwethu eyaziwayo, ngoku ndiza kujongana ngokufutshane nomnye umzekelo: "Ngoku ndinabantwana ababini. Omnye wabo uyinkwenkwe kwaye uzalwe ngoLwesine. Ngaba kunokwenzeka ukuba omnye umntwana abe yinkwenkwe?"
...Inkqubo yolawulo lwefayile yeGit inciphile, iyakhawuleza, kwaye iyaphatheka. IGit ihlala iphatha izinto, ezizezi fayile. Iifolda zenziwe kuphela ukuba kukho iifayile kuzo, kungenjalo iGit ayizukuzirekhoda. Oku kuneziphumo ebezingalunganga kwezinye iiprojekthi. Umzekelo, inkqubo yevenkile ye-Shopware ixhomekeke ekubambeleleni ngokungqongqo kulwakhiwo lwefolda ukuze isebenze.
...Ivenkile yokuthenga inemodyuli yexabiso elinamandla lokuhambisa onokungenelela ngokuthe ngqo kubalo. Kwimeko yethu, sifuna ukwenza oku kulandelayo: Iindleko zokuhambisa ngenqaku ngalinye zichazwe ngokobunzima benqaku (umda wobunzima uchaziwe). Kuphela kukhetheke ngokukodwa ukuba kunokwenzeka ukuseta iindleko zokuhambisa ezisisigxina kwinto nganye.
...Inkqubo ye-WordPress ye-permalink inokuhlengahlengiswa kakuhle kwiimfuno zakho ngoncedo lwee- tag . Ukuseta% igama lefayile% sesona sisombululo sixhaphakileyo nesisebenzayo. Nangona kunjalo, ukuba ufuna ukumilisela amakhonkco anyanisekileyo okwenyani, kufuneka kuqala wandise inkqubo ngekhowudi yakho.
...Umntu unokucinga ukuba xa ii-hyperlink zivulwa kuxwebhu lweLizwi / lwe-Excel, umkhangeli osemgangathweni uqalwa nge-URL efunwayo. Okumangalisa ngokwaneleyo kukuba, oku akunjalo- okukhokelela kwiziphumo ebezingalindelekanga kwaye kwenza amakhonkco eseshini / asekwe ngecookie-akhuselwe kumaphepha akhuselweyo kwiinkqubo zeofisi ukuba akunakwenzeka.
...Ngomhla kaTata namhlanje, intombi inika utata wakhe umfanekiso azizobe ngawo, awayewulangazelele utata wakhe. Intombi ithi: "Ndiza kukunika umfanekiso owawunqwenele kwaye isipho sam siya kuba sisimanga". Utata wothukile kwaye ucinga ngobunyani bale ngxelo.
...Ukuba ubandakanya izikripthi ezingabhalwanga kwindawo <head> kwaye ubize iphepha elinesiqinisekiso se-SSL esele sikhona, ezi zikripthi ziyavalwa kwaye ke azenziwa. Ukuba umane ushiya umthetho olandelwayo, zonke izikripthi zibizwa ngokuzenzekelayo kwifom ebhaliweyo ukuba iwebhusayithi ifikeleleka nge-https: // - kungenjalo kungabhalwanga.
...Xa usebenza neemenyu ezilahlekayo ezinamacala amaninzi, umntu uhlala engena engxakini yokuba iimenyu ezingalunganga zivulwe ngengozi okanye imenu esezantsi efunwayo ivalwe ngengozi. Esi siphumo senzeka xa isikhombisi semouse sishiya imenyu ehambelanayo kwinqanaba eliphezulu ngelixa uzulazula kwimenyu esezantsi esele yandisiwe.
...Kwiivenkile zakwaVenkile , inqaku liphela lenziwe ukuba lingabinakho uku-odolwa ngokwenyani ukuba zonke izinto ezikhoyo zinenqanaba lesitokhwe elingaphantsi okanye elilinganayo no-0. Ukufezekisa oku ngendlela eyahlukileyo, ndacwangcisa iplagi encinci, endiyinika ngezantsi iBootstrap.php.
...Eli qela lilandelayo lihlala lineziphumo ebezingalunganga: Ukuba uyayikhusela indawo yakho nge htaccess / htpasswd kwaye kwangaxeshanye unyanzela uqhagamshelo lwe-SSL, uhlala ufuna iphasiwedi efanayo ukuba ingeniswe kabini (kube kanye kwi-http kwaye kwakhona emva kokungena ngempumelelo kwe-https). Ngoncedo lwamacandelo oqwalaselo aziswe kwi-Apache 2.4, ingxaki inokujongana ngokulula.
...Xa usenza inkqubo ngeJavaScript, umntu uhlala ekhubeka ngenxa yokungakwazi ukumilisela imitya emininzi ngokungena kuyo kwimigca emininzi kwikhowudi. Ngelixa umsebenzi kwezinye iilwimi ezinje nge-PHP okanye iRuby ayisiyongxaki, ngeJavaScript unokuqala ukuyenza ngokujikeleza, ukusetyenziswa kwayo kugqitywe kukhetho lobuqu okanye inkxaso yesikhangeli.
...Ukuthumela ii-imeyile nge-PHP kusetyenziswe kakuhle kwiiklasi ezinamandla ezinje nge- PHPMailer . Imisebenzi esongelayo elula yenza ukuba kube lula ukusebenzisa umxholo kwi-UTF-8, ukufaka imifanekiso kunye nokuthumela izinamathiselo ezifihliweyo ngemigca embalwa yekhowudi. Ukuba ufuna ukuzisindisa ngaphezulu kwaye, ngokuchaseneyo nengcebiso, sebenzisa umsebenzi we- imeyile ye -PHP () , uya kuba neengxaki xa usebenzisa i-umlauts kunye ne-UTF-8 kutshanje.
...Izixhobo zokuqinisekisa ezinje nge- W3C yokuPhawula ukuSebenza kweNkonzo okanye iGoogle PageSpeed Insights ziluncedo ekuvavanyeni ikhowudi kunye nokusebenza kwewebhusayithi. UGoogle ngokukodwa uchaphazela lonke ishishini elinamagqabantshintshi anje ngentla kwesibonda- kwaye ikwabonelela ngezikhokelo ezingqongqo kodwa eziluncedo zoxinzelelo lomfanekiso kunye nokugcina i-caching. Nangona kunjalo, inokwenzeka into yokuba uGoogle azinyathele ngeenyawo zakhe.
...IJavaScript ilawula iwebhu kunye ne-ECMAScript, isiseko solwimi siyakhula. Inkqubo entsha (i-ES6 okanye iJS2), elindelwe embindini walo nyaka, izisa izinto ezintsha ezinokulingwa namhlanje. IFirefox okwangoku ineyona nkxaso ilungileyo , kodwa i-polyfill ngokusebenzisa izinto ezibizwa ngokuba ngabadlulisi ezifana neGoogle Traceur nazo zinokwenzeka. Oku kulandelayo kukujonga ngokufutshane kwezinto ezintsha ze-ES6.
...Nokuba usesikolweni okanye eyunivesithi: Umbuzo onomdla \( 0,99999... = 1 \) kwaye ubandakanye umbuzo wokuba ingaba le nxaki iyinyani: \( 0,99999... = 1 \) . Nangona ubuthongo obungapheliyo kwinxalenye yasekhohlo ye-equation, \(0,99999... = A\) igama: \(0,99999... = A\) . Emva kokuphindaphinda ngento \(10\) kunye notshintsho olulula lwealgebra, sifumana umbono wokuqala omangalisayo.
...Ndijongane nale ngxaki yokusebenza ilandelayo yedatha ye-SQL: Kwitheyibhile ye-SQL ebizwa ngokuba "ngabasebenzisi" enamagama angama- ~ 1,000,000, kuthathe imizuzwana engama-28 engamkelekanga ukumisela inani lobhaliso namhlanje. Amaxesha obhaliso agcinwa kwifomathi "Ymd H: i: s" kwikholamu "eyenziwe".
...Ukongeza kwingxaki ye- knight eyaziwayo kunye nengxaki yokumkanikazi, mininzi eminye imibuzo enomdla kwilizwe lechess. Ndichukumise kwizinto ezimbini ezithandekayo kubhlog langaphambili. Ukuba ujongana nemathematika neengxaki zechess, uya kufumanisa ngokukhawuleza ukuba imathematics inika iimpendulo ezilula nezikhanyayo kwimibuzo emininzi.
...Ukuba OneDrive, Idropbox, Google Drayivu, OwnCloud, Ibhokisi.net: Nokuba yeyiphi ibhokisi ozigcina kuyo iifayile-iinkonzo ziphantse zafana. Abaxhasi ziyafumaneka kuzo zonke iidesktop kunye neesistim zeselfowuni, iifayile ezingafakwanga ukubethelwa ngokusemgangathweni kunye neendlela zokwabelana ezahlukileyo kuphela kumda. Kodwa i-OneDrive, edityaniswe kwinkqubo ukusukela kwiWindows 8.1, inento ekhethekileyo: ziifayile kuphela ezifumaneka kwi-Intanethi.
...Iifayile ezikwiiseva zewebhu kufuneka zihlale zingenazithuba (hayi "lo ngumfanekiso.jpg"), ngaphandle kweemlauts okanye abalinganiswa abakhethekileyo (hayi "ibhola.jpg"), ngaphandle komhlathana (hayi "Arbeit \ Auto.jpg") nakunobumba omncinci (hayi " Uvavanyo lweJPG "). Kutshanje, nangona kunjalo, kuye kwafuneka ndingene kwaye ndicwangcise inani elikhulu leefayile ezisetiweyo ngalo naliphi na igama lefayile yeprojekthi yomthengi.
...Namhlanje ndifumene lo msebenzi ulandelayo ngelixa ndisebenza kwiprojekthi yabathengi: Thatha iitafile ze-SQL "umsebenzisi" kunye neekholamu "id" kunye "namanqaku" kunye nokuchonga uluhlu lwabo bonke abasebenzisi abalungiswe "ngamanqaku" apho abasebenzisi fumana inqanaba elifanayo ngamanqaku afanayo. Lo msebenzi unokusonjululwa ngokulula kwaye ngokulula ngokusebenzisa izinto ezichaziweyo zomsebenzisi .
...Xa usebenza ne-Facebook SDK (ngakumbi ngakumbi xa uphumeza umsebenzi wokungena kwi-Facebook ngaphakathi REST ujongano), uphawu oludlulisiweyo umthengi alufumene kuFacebook kufuneka luqale lujongwe ngumncedisi ngaphambi kokuba kuqhubeke ukusebenza. .
...Nokuba iChannel, iFirefox, iOpera, iSafari okanye iInternet Explorer: Ngelixa izixhobo zokuphucula izixhobo ziyindawo ekhethekileyo yokuthengisa yeFirefox kunye nePlagbug- plug-in edumileyo de kwaba yiminyaka embalwa edlulileyo, izixhobo zokuphucula ezinamandla ngoku ziyinxalenye yomgangatho webrawuza nganye, apho kuninzi ukufumanisa Inika.
...Ndisandula ukufumana ukhetho oluhle kwi-MySQL yokufaka inkqubo yefayile kunye nokufumana ulwazi oluxabisekileyo, umzekelo malunga nobukho beefayile kunye neefolda okanye imixholo yazo. Oku kunokuba luncedo njengenye indlela yokwenza umsebenzi we-php file_exists , njengoko ulwazi malunga nobukho beefayile (ezo) lusenokusetyenziswa kumbuzo wokuqhubeka kokuhlelwa kwemisebenzi kunye nokudityaniswa kwemisebenzi.
...Imvelaphi ye-vector yoopopayi inokongeza izinto ezahlukeneyo kubume bewebhu obuboniswe ngeefoto kunye nevidiyo ezizeleyo. Kuya kuba kuhle ukuba ixesha lokulayisha kunye nenkxaso ebanzi yezixhobo zekhompyutha kunye nesoftware zihamba kunye noku. Isisombululo esinye kukuba: i-canvas. Into ye-HTML elawulwa yiJavaScript ixhaswa zizo zonke izikhangeli zangoku kwaye iphinde yaveliswa ngokusebenza okuphezulu kwizixhobo eziphathwayo.
...Njengomphuhlisi wewebhu, uhlala uneentloni ukusebenza nezinto ze-HTML ngokwazo-ngokuchaseneyo ne-img element, umzekelo-abanobungakanani obumiselweyo okanye umlinganiso wempawu. Rhoqo ufuna ukufezekisa ukuba ezi zinto ziziphatha ngokuphendula, kodwa umlinganiso phakathi kobubanzi nokuphakama uyagcinwa. I-CSS ayiboneleli ngesisombululo esinomdla apha ngokwendalo. Kodwa ngoncedo lwepropathi yokulinganisa ethe nkqo ungayiphumeza injongo yakho.
...Emva kokuba iNkundla yeNgingqi yaseCologne ibuyile kwisikhalazo seRedTube kwiveki ephelileyo kwaye zange bavunyelwe ukuba bavume ukunikezelwa kweedilesi eziphikisayo ze-IP, ihambisa esinye isigwebo esinempikiswano nesithandabuzekayo ngesigqibo se-14 O 427/13: Umbhali weStock- Iifoto ezivela kwiarhente ethile yemifanekiso kufuneka zithiwe igama ngokufikelela ngqo kwimifanekiso yayo nge-URL yazo.
...Izinto ezintsha ezichaziweyo ze-HTML5 zininzi kwaye uninzi lwazo sele luxhaswe sisininzi se-browser yomhlaba-apha ngezantsi ndifuna ukubonisa utshintsho olunomdla kwimithetho yezinto zokuhlalisa. I-HTML ihlala yahlula phakathi kwebhloko kunye nezinto ezisemgceni. Inkcazo yohlobo loXwebhu lwe -HTML4, umzekelo, amagama h1, p, kunye ne-div njengezinto zebhloko kunye, nesithuba, img njengezinto ezisemgceni.
...Zombini i-Apache kwi-Unix kunye ne-IIS kwiinkqubo ze-Windows log izicelo ze-HTTP ngaphandle kwebhokisi kwifom yefayile. Izicelo kwiwebhusayithi yakho akufuneki zivavanywe rhoqo kwaye zihlalutywe ngesandla nangokuzenzekelayo (umz.ngokuhlaziya iifayile ze-log ezinje ngeAWStats ) ukukhusela kuhlaselo lokugenca. Iindlela zeefayile zelog ezifanelekileyo kuseto olusetyenziswa ngokubanzi, umzekelo, ngolu hlobo lulandelayo:
/var/log/apache2/access.log
(Umzekelo: Ubuntu 12.04, Apache 2.2)C:\inetpub\logs\LogFiles\W3SVC1\u_ex<YYMMDD>.log
(Umzekelo: Windows Server 2012 R2, IIS 8.5)
Xa udibanisa iJoomla 3.2 kwiWindows Server 2008 R2 kunye ne-IIS 7.5, iingxaki ngamalungelo esikhombisi zihlala zivela, zihlala zisonjululwa ngokungonelanga kuseto olunobubele kakhulu. Esi sisombululo silandelayo sikhuselekile kwaye sisebenza ngokupheleleyo:
- Iqela IIS_IUSRS lifuna amalungelo e-C: \ inetpub \ wwwroot \: funda kwaye wenze, bonisa imixholo yolawulo, funda, bhala
- IIS_IUSRS Iqela lifuna amalungelo e-C: \ Windows \ Temp \: Funda & Phumeza, Bonisa imixholo kwifolda, Funda, Bhala
- Umsebenzisi we-IUSR kufuneka abe kwiqela le-IIS_IUSRS (uLawulo lweKhompyuter> Abasebenzisi baseKhaya kunye namaQela> Amaqela)
Ukuba ufuna amanye amalungelo awodwa olawulo lwazo zonke iifayile ezilayishwe nge-PHP (umz.i-SSH okanye i-FTP), ungaseta ezi kwifolda C: \ Windows \ Temp \. Ukuba ulayishe ifayile nge-PHP, PHP kuqala ukope le fayile okwethutyana emva koko ungene kumendo wokugqibela. Ukuba ifayile ifike kulawulo lwethutyana, ifumana amalungelo ayo kwaye iwagcine emva kokufudukela kulawulo lokugqibela.
...Ngamaxesha esikhalazo se-NSA, ayisiyiyo kuphela inethiwekhi-eyaziyo abasebenzisi ukuba bayazibuza ukuba ingaba umntu angaya njani kwinethiwekhi ngokungaziwa ukuze abaleke ukuqokelelwa kwedatha ngabasemagunyeni kunye neenkonzo eziyimfihlo. Nangona kunjalo, oku kuhlala kukhokelela kwiimpazamo kunye nokucinga okungachanekanga. Eyona mbono iphosakeleyo iphambili kukuncitshiswa kokungaziwa kokungaziwa kwedilesi ye-IP.
...Umxokelelwano wokuqina wesaphulelo uMcFIT uzinikezele ngokwabo. Ngelixa i-mascot etyheli eqaqambileyo ngohlobo lwebhanana ihombise unobumba ohlaza okwesibhakabhaka, isaphetha esimthubi kwimibala enombala we-anthracite ngoku sityibilikiswe ngobuchule kwaye ngenxa yoko senza ubume obungabonakaliyo. Imibala ye-FDP eluhlaza okwesibhakabhaka nephuzi ayiniki kuphela ilogo, kodwa nazo zonke ezinye izinto zokuprinta uphawu lweMcFIT.
...Xa abantakwabo uThomas noJohn Knoll baqala ukwenza iAdobe Photoshop ngo-1987, ndandingekazalwa. Namhlanje, kwi-2013, isoftware yenye yeenkqubo ezaziwa kakhulu ngokubanzi kunye nenkokeli yemakethi engenakuphikiswa ekusetyenzisweni kwemifanekiso. Enkosi kwiAdobe kunye neMyuziyam yeMbali yeKhompyuter, isoftware ngoku iya kugcinelwa izizukulwana ezizayo ngendlela ekhethekileyo.
...I-Chess inomdla ebantwini kangangeenkulungwane-imigaqo yayo kulula ukuyifunda kwaye ubunzulu bayo abukholeleki bufikeleleka kuphela kubadlali abanamava (ngelishwa, andinguye omnye wabo). Koku kulandelayo, ndiza kujongana nemibuzo emibini emifutshane: Ngaba kunokwenzeka, ngokulandelelana ngokuchanekileyo kokuhamba, ukufikelela kwindawo apho ukumkani omnyama ahlaselwa ngookumkanikazi ababini abamhlophe ngaxeshanye? Ngaba oku kunokwenzeka ngeenqaba ezimbini ezimhlophe?
...Imiboniso bhanyabhanya ihlala irekhodwa kwaye idlalwe kwakhona kwizakhelo ezingama-24 ngomzuzwana- kodwa phantse ifomathi yeminyaka eli-100 ubudala "24p" ibonakala ngathi iyaxenga. Ukuthintela iziphumo ebezingalindelekanga ezingaginyisi mathe (umz. Ukujija ngamandla ngexesha leepani zekhamera ezikhawulezayo) yeprojekhthi ye-24fps, umsebenzi wenziwe ixesha elide ekuphindaphindeni inqanaba lesakhelo kwizakhelo ezingama-48 ngomzuzwana nangaphezulu.
...Upelo oluzenzekelayo kunye nokuhlolwa kwegrama ngoku zizixhobo ezisemgangathweni kwiinkqubo zokulungiswa kwamagama-kodwa ukujonga upelo lwewebhusayithi ngokuzenzekelayo kuye kwaba nzima ukuza kuthi ga ngoku. UGoogle Chrome uthatha inyathelo lokuqala kwelicala kunye nokutshekishwa okuhlanganisiweyo kwimihlaba yokufaka emininzi (textarea). Ngoku kukho inkonzo eyenza oku kwenzeke kuzo zonke iiwebhusayithi.
...Kwiiveki ezimbalwa ezidlulileyo ndinike ingxelo ngendlela onokwenza ngayo ukuba iindwendwe zakho zivule usetyenziso lwefowuni kwizixhobo eziphathwayo ngokucofa inombolo yefowuni. Ubukho ngoku buvele bokutshixa ngokungatshintshiyo iSIM khadi okanye ukuseta isixhobo kwakhona kuseto lwefektri ngaphandle kwentshukumo yomsebenzisi.
...Ngaba amagama e-domain kunye needilesi ze-imeyile zihlala zihlala zingaphantsi ukuqinisekisa ukuba ufika apho ufuna ukuya khona? Okanye ngaba oku akunamsebenzi kwaphela? Umzekelo, iiseva zeposi zikaGoogle zinezicwangciso ezingaqhelekanga ezineziphumo ezinomdla, endiza kuthi ndizise ngokufutshane kwinqaku elilandelayo.
...Ndilandela ngokusondeleyo uyilo lweenkqubo ezahlukeneyo kumabonwakude waseJamani. Akukho naluphi na usasazo olugcina uyilo lwenkampani ngokusisigxina. Yonke into yangokuhlwa yentlanganiso ephambi kwesikrini se-TV ngo-10: 15 emva kwemini kwizihloko zosuku ibindenza ukuba ndiqaqanjelwe sisisu mva nje: isikimu sombala esidideka ngokupheleleyo sikhethwe iinyanga ezininzi xa amaxabiso esitokhwe sitokhwe ngoku.
...Ukuba ulungiselela iwebhusayithi yakho kwizixhobo eziphathwayo, akufuneki unikele ingqalelo kuphela kubungakanani beescreen ezahlukeneyo, ixesha lokulayisha elilungiselelwe kunye neempawu ezizodwa ezisebenzayo (ezinje ngeziphumo zokuhamba), kodwa ujongane nobuchule obukhethekileyo bezixhobo. Oku kubandakanya (abanye abantu banokulibala) ukwenza iifowuni.
...Umxholo ofanayo kwiiwebhusayithi ezahlukeneyo wohlwaywa nguGoogle kwiimeko ezininzi-nangona kunjalo iGoogle algorithm ikrelekrele kwaye iyaqonda ukuba izinto ezikwintloko kunye nasezinyaweni zihlala zinjalo okanye nokuba zonke iivesi zovavanyo zinokufikelelwa kabini phantsi kwee-URL ezahlukeneyo. Umbuzo onomdla kukuba uGoogle ujongana njani nenqaku lephepha lebhlog.
...Ukhuseleko lwenkqubo yolawulo lomxholo ngoku ethandwa kakhulu yiWordPress inokunyuswa ngokubonakalayo ngokuguqula izikrufu ezimbini ezincinci. Ithatha kuphela imizuzu emi-5 kunye nemigca emibini yekhowudi. Nangona ingxaki inokusonjululwa ngeendlela ezahlukeneyo zeeplagi, ndizikhawulela ngabom kwizisombululo ezingenasiplagi.
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