Uhlobo lweScript

Xa kuziwa kubugcisa bokunxibisa abantwana, kukho intaphane yeendlela neendlela ekufuneka ziqwalaselwe, nto leyo eyenza kube yinto eyonwabisayo nevuselelayo. Kweli nqaku, siza kuphonononga ezinye izitayile ezidumileyo zabantwana, iinkcukacha ngembali kunye nelifa lemveli emva kwezi zimbo, kwaye sinikeze neengcebiso eziluncedo malunga nendlela yokuxuba kakuhle kunye nokutshatisa iziqwenga zempahla ezahlukeneyo zokugqiba ukugudiswa.

Funda Okuninzi

Kwilizwe lodweliso lwenkqubo, imeko edla ngokudibana yimfuneko yokuhlenga uluhlu lwezinto. Oku kunokubonakala kunzima ekuqaleni, ngakumbi kulwimi oluchwetheziweyo olufana nolu Uhlobo lwescript. Nangona kunjalo, ngendlela efanelekileyo, lo msebenzi unokujika ube ngumsebenzi olawulekayo. Oku kuhamba ngaphaya kokuhlelwa kwealfabhethi okanye ngamanani; siphengulula nzulu ekuhleleni ngeempawu ezithile okanye iipropathi ezininzi zoluhlu lwento.

Isisombululo sengxaki sibandakanya usebenziso lwendlela yoluhlu lukaluhlu () indlela ngokudityaniswa nenkqubo yohlobo lweTypeScript. Nanku umfanekiso okhawulezayo wendlela onokuthi uhlele ngayo uluhlu lwezinto ngepropati 'yegama'.

let arr = [{name: 'Joe'}, {name: 'Bob'}, {name: 'Alice'}];
arr.sort((a, b) => a.name.localeCompare(b.name));

Kulo mzekelo ungentla, sisebenzisa i-JavaScript eyakhelwe-ngaphakathi ye-Array.prototype.sort indlela kunye nomsebenzi wokuthelekisa ngokusekelwe kwiindawo.

Funda Okuninzi

Ngokuqinisekileyo, nantsi uyilo lwenqaku lakho:

Ukuqonda amandla kunye nokuguquguquka kwenkqubo yeLua kunika ixabiso elibalulekileyo ekulawuleni iifayile ngendlela enobuchule. Omnye umba obalulekileyo omele uqwalaselwe kukukwazi kwayo ukujonga ukuba ifayile ikhona na. Lo msebenzi ubalulekile ekunqandeni iimpazamo okanye iziphumo ebezingalindelekanga ngexesha lokusebenza kweefayile. Namhlanje, sijonge ukucalula inkqubo yokuqinisekisa ubukho befayile kusetyenziswa uLua.

Funda Okuninzi

Nantsi indlela ongalimisa ngayo inqaku olicelileyo malunga ne "useref" react:

I-React yilayibrari eyaziwayo jikelele yokudala ujongano lomsebenzisi, ngakumbi usetyenziso olunephepha elinye. Lithala leencwadi elikhaphukhaphu kwaye elibhetyebhetye eliyilelwe ukomeleza amava omsebenzisi. Uphuhliso lweWebhu lufikelele kwii-horizons ezintsha ezineempawu ezifana neeHooks eziziswa yiReact. Enye into ebalulekileyo enjalo, okanye ungayiqwalasela, ikhonkco elinikezwe yiReact yi useRef. useRef isetyenziswa ngokubanzi ukufikelela iindawo zeDOM okanye iReact elements.

Funda Okuninzi

Ngokuqinisekileyo, nali inqaku elide malunga neFont Awesome Angular:

Ifonti eyoyikekayo lithala leencwadi elimangalisayo elinokusetyenziswa kwizicelo zethu zeAngular. Ukubandakanya iFonti eyoyikekayo kunika abaphuhlisi ukufikelela kumakhulu ee-iyikhoni eziguquguqukayo nezinokwehla ezinokuthi zenzelwe wena ngeCSS. Oku kuluncedo ngakumbi kuba kusivumela ukuba sisebenzise ii-icon ezilungileyo ngaphandle kwesidingo sokuxhomekeka kakhulu kwimizobo okanye kwiifayile zemifanekiso. Oku kunokwenza lula ugcino kunye nolungiselelo lweeprojekthi zakho ze-Angular. Kwesi sikhokelo, siza kufunda indlela yokudibanisa ifonti eyoyikekayo kwisicelo sakho se-Angular inyathelo ngenyathelo.

Funda Okuninzi

Ukutshintsha ubungakanani befestile kunokubonakala njengomsebenzi ongabalulekanga kuphuhliso lwewebhu, kodwa eneneni ibophelela iikhonsepthi ezimbalwa kwiJavaScript kunye neTypescript, kwaye idlala indima ebalulekileyo ekuqinisekiseni uyilo oluphendulayo nolusebenzisekayo. Kumxholo we-UI/UX eguqukayo, umsebenzi 'wokubuyisela ubungakanani befestile' ngowona ubalulekileyo. Imizekelo yemihla ngemihla inokubandakanya ibar esecaleni ecuthekayo kwifestile yokutshintsha ubungakanani befestile ukunika indawo yokufunda engenamthungo, okanye umfanekiso wegalari ozilungisayo ukunqanda ukugqwetheka. Uhlengahlengiso lwenziwa ngokuqhubekayo ngokumamela isiganeko sokutshintsha ubungakanani befestile.

Funda Okuninzi

Njengomphuhlisi, mhlawumbi ubaleke ngapha kwefolda `indawo_iimodyuli` kwiiprojekthi zakho. Le yinxalenye ebalulekileyo yeJavaScript kunye ne-TypeScript yehlabathi, ngokukodwa kwiiprojekthi ezisebenzisa i-Node.js. Ezi `nodi_modyuli` zifana neDNA yeprojekthi yakho, kuquka onke amathala eencwadi okanye ukuxhomekeka ekufunayo ikhowudi yakho ukuze iphunyezwe ngokuchanekileyo. Umba kukuba le folda inokukhula ngokukhawuleza ubungakanani, yenza iprojekthi yakho ibe nzima, ngakumbi ngokwemigaqo yolawulo lwenkqubo. Ngaphezu koko, kunokubakho intaphane yeengxabano zoguqulelo ukuba azisingathwanga ngokuchanekileyo.

Funda Okuninzi

Kuluntu lwanamhlanje apho ulwazi olugqithisiweyo luxhaphakile, ukujongana namaxwebhu e-HTML akunjalo. Yonke iphepha lewebhu lendalo ye-intanethi yakhiwe kwi-HTML, idala i-labyrinthine mesh yezinto kunye neethegi. Isitshixo sokuhamba ngale mesh ngendlela ecwangcisiweyo necwangcisiweyo kukusebenzisa i querySelectorAll indlela kwiJavaScript okanye, kwimeko yethu apha, iTypeScript. Namhlanje, siza kuphanda nzulu ekuxhaseni amandla e-querySelectorAll njenge-HTMLElement kwi-TypeScript.

Funda Okuninzi

Ukubuyisela umva uluhlu kwi-Typescript kubandakanya ngokusisiseko ukutshintsha ulandelelwano lwezinto ezingaphakathi kuluhlu ukusuka kulandelelwano olukhoyo ukuya kwelinye. Le nkqubo licandelo elibalulekileyo ekwenziweni koluhlu, kwaye kungoko, inokuba luncedo kakhulu ekusombululeni iingxaki ezahlukeneyo ezintsonkothileyo.

The Uhlobo lwescript ulwimi luquka indlela eyakhelweyo yokubuyisela umva uluhlu, eyaziwa ngokuba yi-array.reverse() umsebenzi. Ewe, sisebenzisa lo msebenzi, singakwazi ukubuyisela umva kwakhona naluphi na uluhlu kwi-Typescript.

Ukubonisa ukusetyenziswa kwayo, qwalasela uluhlu lwesampulu lulandelayo:

let array = [1, 2, 3, 4, 5];

Singalubuyisela umva olu luhlu ngokusebenzisa i array.reverse() umsebenzi ngolu hlobo lulandelayo:

array = array.reverse();

Lo msebenzi uya kulubuyisela umva ulandelelwano lweziqalelo kuluhlu lwentsusa ukuze ulandelelwano lwayo lube yinto echaseneyo naleyo ibiyiyo phambi kokuba umsebenzi usetyenziswe.

Funda Okuninzi