我希望在运行
因此,我安装了webpack-dev-server并尝试了以下方法: package.json:
如果你查看
此外,这是我的webpack.config.js:
请注意,我正在使用 ExtractTextPlugin(我有一个单独的CSS文件),file-loader 插件(用于url/images)等。当我运行命令
npm run watch
命令时能够实现热重载(Hot Reloading)。我想让它像使用vue-cli时一样工作,即运行npm run dev
命令:https://vue-loader.vuejs.org/en/features/hot-reload.html。因此,我安装了webpack-dev-server并尝试了以下方法: package.json:
{
"name": "webpack-learning",
"version": "1.0.0",
"description": "",
"scripts": {
"dev": "cross-env NODE_ENV=development webpack",
"watch": "cross-env NODE_ENV=development webpack-dev-server --open --hot",
"build": "cross-env NODE_ENV=production webpack --progress --hide-modules"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"babel-core": "^6.24.1",
"babel-loader": "^7.0.0",
"babel-preset-es2015": "^6.24.1",
"cross-env": "^5.0.0",
"css-loader": "^0.28.1",
"extract-text-webpack-plugin": "^2.1.0",
"file-loader": "^0.11.1",
"node-sass": "^4.5.2",
"purifycss-webpack": "^0.6.2",
"sass-loader": "^6.0.5",
"style-loader": "^0.17.0",
"webpack": "^2.4.1",
"webpack-dev-server": "^2.4.5"
}
}
如果你查看
"watch"
脚本,它使用了webpack-dev-server,并且也有--open --hot
参数,这与vue-cli的package.json相同。此外,这是我的webpack.config.js:
var webpack = require('webpack');
var path = require('path');
const glob = require('glob');
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const PurifyCSSPlugin = require('purifycss-webpack');
var inProduction = (process.env.NODE_ENV === 'production');
module.exports = {
entry: {
app: [
'./src/js/main.js',
'./src/sass/app.scss'
]
},
output: {
path: path.resolve(__dirname, './dist'),
filename: '[name].js'
},
module: {
rules: [
{
test: /\.s[ac]ss$/,
use: ExtractTextPlugin.extract({
use: ['css-loader', 'sass-loader'],
fallback: 'style-loader'
})
},
{
test: /\.(png|jpe?g|gif|svg|eot|ttf|woff|woff2)$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
},
{
test: /\.css$/,
use: ['style-loader', 'css-loader']
},
{
test: /\.js$/,
exclude: /node_modules/,
loader: "babel-loader"
}
]
},
plugins: [
new ExtractTextPlugin('[name].css'),
new PurifyCSSPlugin({
paths: glob.sync(path.join(__dirname, 'index.html')),
minimize: inProduction
}),
new webpack.LoaderOptionsPlugin({
minimize: inProduction
})
],
devtool: '#eval-source-map'
};
if (inProduction) {
module.exports.devtool = '#source-map';
module.exports.plugins.push(
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
compress: {
warnings: false
}
})
);
}
请注意,我正在使用 ExtractTextPlugin(我有一个单独的CSS文件),file-loader 插件(用于url/images)等。当我运行命令
npm run watch
时 - 没有热重载,没有任何反应。没有错误,但它什么也不做,只在浏览器中打开 index.html 链接为:http://localhost:8080。没有检测到任何更改。例如,如果我编辑:app.scss 或 index.html 等,这些更改都不会被加载。它甚至不会编译任何东西(如果我记得没错,在 vue-cli 中,如果您已删除了 dist 目录 - 当您运行 npm run dev
命令时 - 它将重新创建 dist 目录,并将编译后的资产放在那里...但是在这里,如果您已删除已编译的资产 - 它将不会编译/创建新的资产)。