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This article mainly explains "WeChat Mini Programs how to achieve ES6 batch upload files", the article explains the content is simple and clear, easy to learn and understand, now please follow the editor's ideas slowly in depth, together to study and learn "WeChat Mini Programs how to achieve ES6 batch upload files" bar!

WeChat Mini Programs ES6Promise.all batch upload file implementation code

Client

Page ({onLoad: function () {wx.chooseImage ({count: 9, success: function ({tempFilePaths}) {var promise = Promise.all (tempFilePaths.map ((tempFilePath, index) = > {return new Promise (function (resolve, reject) {wx.uploadFile ({url: 'https://www.mengmeitong.com/upload', filePath: tempFilePath) Name: 'photo', formData: {filename:' foo-' + index, index: index}, success: function (res) {resolve (res.data) }, fail: function (err) {reject (new Error ('failed to upload file'));})); promise.then (function (results) {console.log (results);}) .catch (function (err) {console.log (err)) });})

Server side

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