Tabbas, ga labarin ku na JavaScript tare da tsarin da kuka zayyana:
Sanin abubuwan da ke cikin JavaScript yana da mahimmanci ga duk wani mai haɓakawa da ke nufin inganci da inganci. JavaScript kayan aiki ne mai ƙarfi wanda ke ba mu damar ƙirƙirar ayyukan aiki tare da masu amfani. A cikin wannan labarin, za mu bi ta cikin nuances na amfani da fasalin 'view available versions' a JavaScript.
Fahimtar Matsala
A wasu lokuta, a cikin duniyar ci gaban JavaScript, mutum na iya buƙatar sani wanne nau'ikan wani ɗakin karatu ko fakitin suna samuwa. Sabuntawa na yau da kullun da haɓakawa akai-akai suna buƙatar masu haɓakawa su sani da amfani da sigar da ta dace don guje wa yuwuwar matsalolin rashin jituwa.
// Typical problem when trying to access a unknown version
const desiredVersion = 'unknown version';
const library = require(library@${desiredVersion});
Bayanin Magani
An yi sa'a, da NPM rajista ya zo a hannu don magance wannan batu. Umarni mai sauƙi shine duk abin da ake ɗauka don ɗauko jerin abubuwan da ake samu don takamaiman fakitin.
// Basic NPM command for fetching versions
npm show {package name} versions
Bayyana Code
Wannan gardamar-layin umarni yana ba mu jeri na duk nau'ikan da ke akwai don kunshin da aka bayar.
1. 'npm': ya kira mai sarrafa fakitin Node wanda ke kula da ɗakunan karatu da fakitinmu.
2. 'nunawa': ana amfani da su don debo cikakkun bayanai game da kunshin.
3. '{kunshin sunan}': Sunan kunshin wanda muke so mu gani.
4. 'versions': yana ƙayyade cewa muna son jerin nau'ikan.
Don haka, lokacin da muke son ganin duk nau'ikan fakiti, a ce 'Express', za mu rubuta:
npm show express versions
Ƙarin Kayan aiki da Ayyuka
- npm
- buƙatar
- versions
Don daidaita ayyukanku da kyau, zaku yi amfani da 'bukata' aiki lokacin amfani da takamaiman sigar ɗakin karatu. Misali:
const express = require('express@4.17.0');
Wannan yana taimakawa wajen kiyaye daidaito a cikin ci gaban ku da yanayin samarwa. Ka tuna koyaushe duba dacewar nau'ikan ɗakin karatu dangane da lambar lambar ku kafin ɗaukaka.
Ya bayyana a fili, don haka, mahimmancin ƙware fasalin fasalin 'samuwar ra'ayi' a cikin JavaScript don haɓakawa mara kyau tare da ɗakunan karatu daban-daban da tsarin aiki. Fahimtar yadda ake sarrafa nau'ikan nau'ikan na iya ceton ku sa'o'i na yin matsala tare da sanya aikace-aikacenku ya zama daidai kuma abin dogaro. Kasance tare don ƙarin nasiha da dabaru na JavaScript.
