Kweli xesha lanamhlanje eliqhutywa yitekhnoloji, inkqubo ye-frontend kwaye ngakumbi ukusebenza kwiJavaScript ibe ngumsebenzi onzima kodwa onomdla. Ngexesha kunye nezikhokelo ezitsha, kuya kuba luncedo kwaye kuyakhawuleza ukuphuhlisa usetyenziso lwewebhu. Enye inkalo enjalo yeprogram ye-frontend kukuphuhlisa amacandelo kwisicelo. Nangona kunjalo, ngamanye amaxesha, sinqwenela ukuvelisa icandelo ngaphandle kwefayile yenkcazo (spec). Kulapho umxholo wethu ophambili uhlala khona namhlanje. Kweli nqaku, siza kuphonononga ukusombulula le ngxaki ikhethekileyo ngokufanelekileyo.
JavaScript
Emva kokudalwa kwewebhu kunye ne-HTML kunye nokuhlelwa kwayo ngeCSS, iJavaScript ibe lulwimi esinokusebenzisana ngalo nomsebenzisi kwisiphequluli.
Kodwa ukuba oku akuvakali ngathi kuninzi kuwe, umsebenzi weJavaScript ugqithile, waba lulwimi lwabo bobabini abaphuhlisi beFrontEnd kunye neBackEnd.
Izikhokelo ezininzi zenziwe ngokusekwe kwiJavaScripts.
Sinokuphuhlisa nantoni na kuquka ne-AppWeb eyaziwayo.
Ngaphandle kwamathandabuzo, iJavaScript lulwimi ekufuneka wonke umdwelisi wenkqubo alufunde namhlanje.
Kweli candelo sikunceda ngezona ntandabuzo rhoqo kunye neengxaki zemihla ngemihla.
Isonjululwe: seta ububanzi besikrini
Ngokuqinisekileyo, nali inqaku:
Ukuqonda i-enigma yokuseta ububanzi besikrini yingxaki eqhelekileyo abadibana nayo abaphuhlisi. Nokuba wenza uyilo oluphendulayo okanye ujongana nemiba yofikelelo, kubalulekile ukuqonda ngqo ukuba ungabusebenzisa njani ububanzi besikrini ngokuchanekileyo. KwiJavaScript, kulula ukufumana ububanzi besikrini sombukeli. Into yewindow.screen ingasetyenziselwa ukufunda ububanzi beskrini. Ngoku, masingene sijule ukuze sikuchaze ngcono oku kwimihlathi elandelayo.
Siziwe:ubaleka njani
Ukuqonda ihlabathi elintsonkothileyo lefashoni, ngakumbi xa kufikwa kwimiboniso yefashoni ephezulu, inokuba ngumsebenzi onzima. Ukudityaniswa kwezitayile, imibala, imbali kunye nobuhle bomntu kunokubonakala kunzima, kodwa ngobuchwephesha obuncinci umntu unokucacisa ulwimi lwelaphu kunye noyilo.
Ukuqonda iZitayile zeFashion
Ifashoni, ifana neelwimi zenkqubo yekhompyuter JavaScript, inentaphane yeendlela ezahlukeneyo kunye neendlela ezinokusetyenziswa ukulungisa ingxaki. Kukho izitayile ezingenakubalwa, nganye inemithetho kunye nezikhokelo zayo, ngakumbi njengamathala eencwadi ahlukeneyo okanye isakhelo esinokusebenza ngaso kwiJavaScript.
Umzekelo, isimbo se-Bohemian, esisoloko sibizwa ngokuba 'yi-boho', sisimbo esiphenjelelwe yintshukumo yenkululeko yoo-1960s kunye noo-1970. Ibandakanya izinto ezithandekayo, i-eclecticism kunye nempepho ethile, ubuhle obungenamoya. Izikimu zombala ziqhelekile emhlabeni, zineentsundu ezinzulu, eziluhlaza, kunye neetoni zejewel.
Ngokwahlukileyo, isitayile seMinimalist sicocekile, sikrwada, kwaye sigxile kumbono 'wokuncinci kungaphezulu'. Sisitayile esinokunxulunyaniswa nococeko, olusebenzayo lwekhowudi yeJavaScript engachithi imijikelo kwimisebenzi engafunekiyo.
Ukuqonda iiNdlela zoMbaleko
Imiboniso yefashoni, efana nomjikelo wophuhliso lwesoftware, iyaguquka kwaye ithobela intsingiselo kunye nemigangatho. Umgaqo weenqwelo-moya liqonga labayili ukuba bangabonisi imigca yabo yamva nje kuphela, kodwa baphinde baveze ubuhle babo ngeyona ndlela iyilayo nengangxengwanga.
Isonjululwe: ithetha ukuthini -skiptests%3D%3Dtrue
intshayelelo
Ukuba ngumphuhlisi kumaxesha anamhlanje kuthetha okungakumbi kunokwazi nje ukwenza inkqubo; ikwabonisa iqondo lobuchule bobugcisa kunye nesayensi ye-Search Engine Optimization (SEO). Oku kukwayinyani nakwindawo yedijithali yeshishini lefashoni, apho iintsingiselo kunye nezimbo zihlala ziguquka kwaye zidibanisa. Kweli nqaku, uya kuphonononga ubudlelwane obuntsonkothileyo phakathi kwenkqubo kwiJavaScript, ukubamba i-SEO, kunye nokuhambisana neshishini lefashoni elikhawulezayo.
Umba osondeleyo
Isonjululwe: icandelo elivelisa i-angular ngaphandle kwefayile ethile
Kwilizwe le-Angular, isakhelo esihlonitshwayo ngenxa yokuguquguquka, imveliso kunye nobukhulu, ngamanye amaxesha sidibana nemisebenzi engalandeli isiqhelo semveli. Omnye umsebenzi onjalo ubandakanya ukwenza icandelo ngaphandle kokuvelisa iinkcukacha (okanye 'spec') ifayile. Ifayile ethile yifayile yokuvavanya ehambelana necandelo le-Angular.
Ngelixa inkqubo iqhelekile ngokuthe ngqo, ihlala iphakamisa umbuzo: sihamba njani malunga nokuvelisa icandelo kwi-Angular ngaphandle kwefayile ethile? Masiluqalise kunye olu hambo kwaye sifumanise.
Isonjululwe: angularjs cdn
I-AngularJS, isakhelo seJavaScript esivulelekileyo, sisixhobo esisebenzayo esiphuhliswe nguGoogle. Injongo yalo kukwandisa izicelo ezisekelwe kwisikhangeli kunye ne-MVC (iModel View Controller) ikhono, ukwenza lula zombini uphuhliso kunye nenkqubo yokuvavanya. Olu phuhliso lwesoftware lunceda ekudaleni ii-Single Page Applications (SPA) ngendlela ecocekileyo negcinekayo.
Isonjululwe: iklasi ye-angular yongeza iklasi
I-Angular sisikhokelo sokugqibela esiphuhliswe nguGoogle sokwenza usetyenziso lwewebhu oluguqukayo, lwangoku. Enye yezinto ezibalulekileyo ezibonelela ngokuguquguquka kunye namandla kwi-Angular yintsebenziswano kunye ne-HTML DOM (iModeli yeNto yoXwebhu). Inxalenye ebalulekileyo yale ndibano ibandakanya ukongeza okanye ukususa iiklasi kwizinto zeHTML. Kwi-Angular, iNativeElement iza kudlala ukwenza lo msebenzi. I-NativeElement sisisongelo esijikeleze i-API yesikhangeli somthonyama evumela ukuqhathwa kwezinto ze-HTML. Kweli nqaku, siza kuphonononga kwisicelo seNativeElement ekongezeni ngamandla iklasi kwinto yeHTML.
Isonjululwe: indawo yokufakwa kwefom ifundeka kuphela
Iinkalo zegalelo leFom, inxalenye yendawo yonke ekuphuhlisweni kwewebhu, ineempawu ezininzi. Enye yezi luphawu 'lokufunda kuphela' oluseta umhlaba wefom njengowokufunda kuphela. Oku kuluncedo ngakumbi kwiimeko apho unqwenela ukubonisa idatha ekungafunekiyo ukuba ihlelwe ngumsebenzisi. Inika abaphuhlisi ulawulo ngakumbi kwiifom zefom kumaphepha ewebhu, ukuphucula amava okusebenzisana komsebenzisi ngokubanzi. Eli nqaku luhlalutyo olunzulu kunye nesikhokelo esisebenzayo malunga nendlela yokusebenzisa uphawu "lokufunda kuphela" kwiJavaScript ngempumelelo.
Isonjululwe: yongeza indlela eya kwiqhosha
Ngokuqinisekileyo! Nali inqaku olicelileyo:
Ihlabathi lophuhliso lwewebhu lulwandle olukhulu lwamathuba kwaye ngokufika kweJavaScript, olu lwandle luye lwaba nomdla ngakumbi. Ulwimi lweJavaScript lusivumela ukuba senze inkitha yemisebenzi equka ukongeza iindlela kwiqhosha kwizicelo zethu. Kweli nqaku, siza kuphonononga lo mba weJavaScript, ngokukodwa, indlela yokongeza indlela kwiqhosha, ngesikhokelo sesinyathelo-nge-nyathelo.