与Webpack + Jquery + Bootstrap反应 [英] React with Webpack + Jquery + bootstrap

问题描述

我收到此错误:

bootstrap.min.js:6未捕获的错误:Bootstrap的JavaScript需要 jQuery

bootstrap.min.js:6 Uncaught Error: Bootstrap's JavaScript requires jQuery

当我尝试在我的项目中导入bootstrap.js时，如下所示:

when I try to import bootstrap.js in my project as shown below:

import React from "react";
import ReacrDOM from "react-dom";

import "bootstrap/dist/css/bootstrap.min.css";
import "./assets/css/animate.min.css";
import "./assets/css/light-bootstrap-dashboard.css";
import "./assets/css/demo.css";
import "font-awesome/css/font-awesome.min.css";
import "./assets/css/pe-icon-7-stroke.css";

import $ from "jquery";
import "bootstrap/dist/js/bootstrap.min";
import "./assets/js/bootstrap-checkbox-radio-switch";
import "./assets/js/chartist.min";
import "./assets/js/bootstrap-notify";
import "./assets/js/light-bootstrap-dashboard";
import "./assets/js/demo";

这是我的webpack.config.js

and here is my webpack.config.js

var webpack = require('webpack');
var path = require('path');
var debug = process.env.NODE_ENV !== "production";

module.exports = {
    context: __dirname + "/src",
    devtool: debug ? 'inline-source-map' : null,
    entry: 'index.js',
    output: {
        path: path.join(__dirname, ''),
        filename: 'bundle.js'
    },
    resolve: {
        modules: ['node_modules', 'src'],
        extensions: ['.js']
    },
    module: {
        loaders: [
            {
                test: /\.jsx?$/,
                exclude: /node_modules/,
                loaders: ['babel-loader?presets[]=react,presets[]=es2015,presets[]=stage-0,plugins[]=react-html-attrs,plugins[]=transform-class-properties,plugins[]=transform-decorators-legacy']
            },
            {test: /\.css$/, loader: "style-loader!css-loader"},
            {test: /\.less$/, loader: "style-loader!css-loader!less-loader"},
            {test: /\.gif$/, loader: "url-loader?mimetype=image/png"},
            {test: /\.woff(2)?(\?v=[0-9].[0-9].[0-9])?$/, loader: "url-loader?mimetype=application/font-woff"},
            {test: /\.(ttf|eot|svg|jpe?g|png|gif)(\?v=[0-9].[0-9].[0-9])?$/, loader: "file-loader?name=[name].[ext]"},
            {
                test: /vendor\/.+\.(jsx|js)$/,
                loader: 'imports?jQuery=jquery,$=jquery,this=>window'
            },
        ]
    },
    plugins: debug ? [] : [
            new webpack.optimize.DedupePlugin(),
            new webpack.optimize.OccurrenceOrderPlugin(),
            new webpack.optimize.UglifyJsPlugin({mangle: false, sourcemap: false}),
            new webpack.optimize.AggressiveMergingPlugin(),
            new webpack.ProvidePlugin({
                $: "jquery",
                jquery: "jquery",
                "window.jQuery": "jquery",
                jQuery: "jquery"
            }),
        ]
};

这是我的package.json:

and here is my package.json:

{
  "name": "learn-react",
  "version": "1.0.0",
  "description": "for learning purpose only",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "dev": "webpack-dev-server --content-base --inline --hot --port 3300"
  },
  "keywords": [
    "react",
    "learning"
  ],
  "author": "vidy hermes",
  "license": "ISC",
  "devDependencies": {
    "webpack": "^2.2.1",
    "webpack-dev-server": "^2.3.0",
    "redux-devtools-extension": "^2.13.0",
    "redux-logger": "^2.8.1"
  },
  "dependencies": {
    "axios": "^0.15.3",
    "babel-core": "^6.22.1",
    "babel-loader": "^6.2.10",
    "babel-plugin-react-html-attrs": "^2.0.0",
    "babel-plugin-transform-class-properties": "^6.22.0",
    "babel-plugin-transform-decorators-legacy": "^1.3.4",
    "babel-preset-es2015": "^6.22.0",
    "babel-preset-react": "^6.22.0",
    "babel-preset-stage-0": "^6.22.0",
    "base-64": "^0.1.0",
    "bootstrap": "^3.3.7",
    "css-loader": "^0.26.2",
    "file-loader": "^0.10.1",
    "font-awesome": "^4.7.0",
    "globalize": "^0.1.1",
    "history": "^4.5.1",
    "imports-loader": "^0.7.1",
    "jquery": "^3.2.1",
    "less": "^2.7.2",
    "less-loader": "^2.2.3",
    "moment": "^2.17.1",
    "path": "^0.12.7",
    "react": "15.4.2",
    "react-dom": "15.4.2",
    "react-redux": "^5.0.2",
    "react-redux-loading-bar": "^2.8.2",
    "react-router": "^3.0.2",
    "react-widgets": "^3.4.6",
    "redux": "^3.6.0",
    "redux-promise-middleware": "^4.2.0",
    "redux-thunk": "^2.2.0",
    "style-loader": "^0.13.2",
    "url-loader": "^0.5.8"
  }
}

推荐答案

Bootstrap希望jQuery在全局范围内(浏览器中的窗口对象)可用，因此您需要对它进行匀场处理，webpack可以通过ProvidePlugin

Bootstrap expects jQuery to be available on the global scope, window object in the browser, thus you need to shim it, webpack makes this possible through ProvidePlugin

引用他们的 docs

此插件使模块可以在每个模块中用作变量.仅在使用变量时才需要该模块.示例:使$和jQuery在每个模块中可用，而无需编写require("jquery").

This plugin makes a module available as a variable in every module. The module is required only if you use the variable. Example: Make $ and jQuery available in every module without writing require("jquery").

new webpack.ProvidePlugin({
  $: "jquery",
  jQuery: "jquery",
  "window.jQuery": "jquery"
})

您正在做什么，但仅在生产版本中使用，

Which you are doing, but only in production builds,

将您的webpack的插件定义更改为在调试模式下也包含ProvidePlugin，两个环境中都将需要它.

change your webpack's plugins definition to include ProvidePlugin in debug mode as well, you will need it in both envs.

这篇关于与Webpack + Jquery + Bootstrap反应的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！