這篇文章主要介紹了微信小程序前端promise封裝代碼實例,文中通過示例代碼介紹的非常詳細，對大家的學習或者工作具有一定的參考學習價值,需要的朋友可以參考下
代碼如下
config.js
const config = { base_url_api : "https://douban.uieee.com/v2/movie/",}export {config}http.js
import { config } from "../config";class HTTP { requset({ url, method = "GET", data = {} }) { const promise = new Promise((resolve, reject) => { wx.request({ url: config.base_url_api + url, data, method, header: { 'Content-Type': 'json' }, success: res => { //狀態碼 toString() 轉成字符串 const statusCode = res.statusCode.toString(); if (statusCode.startsWith("2")) { resolve(res.data) } else { this._show_error(); } }, fail: res => { reject(err); this._show_error(); } }) }) return promise; } _show_error() { wx.showToast({ title: '網絡錯誤', icon: 'none' }) }}export { HTTP }model/movie.js
import {HTTP} from "../utils/http";class MovieModel extends HTTP{ getInTheaters(){ return this.requset({ url:"in_theaters" }) } getTop250(){ return this.requset({ url:"top250" }) } getComingSoon(){ return this.requset({ url:"coming_soon" }) }}export {MovieModel};pages/index/index.js
const app = getApp();import {MovieModel} from "../../model/movie";const movieModel = new MovieModel();Page({ onLoad(){ // movieModel.getInTheaters().then(res=>{ // console.log(res) // }) const inTheaters = movieModel.getInTheaters() const top250 = movieModel.getTop250(); const comingSoon = movieModel.getComingSoon(); Promise.all([inTheaters,top250,comingSoon]).then(res=>{ let[inTheaters,top250,comingSoon] = res; console.log(inTheaters) }) }})以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網。
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