Dab tsi yog setHeader hauv node JS?
Dab tsi yog setHeader hauv node JS?

Video: Dab tsi yog setHeader hauv node JS?

Video: Dab tsi yog setHeader hauv node JS?
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Anonim

setHeader () yog ib txoj hauv kev los ntawm Node . js thiab res. header() yog ib tug alias ntawm res. setHeader () tso cai rau koj tsuas yog teeb tsa ib lub npe lus thiab res. header() yuav tso cai rau koj teem ntau lub headers.

Ua li no, thov dab tsi hauv node JS?

js Thov Module. Cov thov module yog nyob deb ntawm qhov nrov tshaj plaws (tsis yog tus qauv) Node pob rau ua HTTP thov . Qhov tseeb, nws yog tiag tiag tsuas yog wrapper ncig Node cov ua hauv http module, yog li koj tuaj yeem ua tiav tag nrho cov haujlwm tib yam ntawm koj tus kheej nrog http, tab sis thov tsuas yog ua kom yooj yim dua.

Tsis tas li ntawd, kuv yuav siv CORS li cas hauv node JS? Ua kom CORS hauv Node. js [Snippets]

  1. app. use(function(req, res, next) {
  2. res. header("Access-Control-Allow-Origin", "*");
  3. res. header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Txais");

Ntawm no, dab tsi yog tsim server hauv node JS?

Cov Node . js lub moj khaum feem ntau yog siv rau tsim server -raws li kev siv. Lub moj khaum tuaj yeem siv tau yooj yim tsim web servers uas tuaj yeem pab cov ntsiab lus rau cov neeg siv. Muaj ntau hom modules xws li "http" thiab "thov" modules, uas pab ua haujlwm server hais txog kev thov hauv qhov chaw webserver.

Node puas muaj Fetch?

node - nqa yog qhov kev siv ntawm cov neeg hauv zos Nqa API rau Node . js. Nws yeej yog tib yam li qhov rais.

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