这是我的webpack.config.js
var webpack = require("webpack");
module.exports = {
entry: "./entry.js",
devtool: "source-map",
output: {
path: "./dist",
filename: "bundle.min.js"
},
plugins: [
new webpack.optimize.UglifyJsPlugin({minimize: true})
]
};
我用
$ webpack
在dist文件夹里,我只得到
bundle.min.js
bundle.min.js.map
我还想看看未压缩的bundle.js
我找到了解决这个问题的新方法。
这使用了一个配置数组,使webpack能够并行地构建精简版和非精简版。这使得构建更快。不需要运行webpack两次。不需要额外的插件。只是webpack。
webpack.config.js
const devConfig = {
mode: 'development',
entry: { bundle: './src/entry.js' },
output: { filename: '[name].js' },
module: { ... },
resolve: { ... },
plugins: { ... }
};
const prodConfig = {
...devConfig,
mode: 'production',
output: { filename: '[name].min.js' }
};
module.exports = (env) => {
switch (env) {
case 'production':
return [devConfig, prodConfig];
default:
return devConfig;
}
};
运行webpack将只生成非缩小版本。
运行webpack——env=production将同时构建缩小版和非缩小版。
你应该像这样导出一个数组:
const path = require('path');
const webpack = require('webpack');
const libName = 'YourLibraryName';
function getConfig(env) {
const config = {
mode: env,
output: {
path: path.resolve('dist'),
library: libName,
libraryTarget: 'umd',
filename: env === 'production' ? `${libName}.min.js` : `${libName}.js`
},
target: 'web',
.... your shared options ...
};
return config;
}
module.exports = [
getConfig('development'),
getConfig('production'),
];
也许我来晚了,但我也有同样的问题,所以我为此写了一个unminifiedwebpack插件。
安装
npm install --save-dev unminified-webpack-plugin
使用
var path = require('path');
var webpack = require('webpack');
var UnminifiedWebpackPlugin = require('unminified-webpack-plugin');
module.exports = {
entry: {
index: './src/index.js'
},
output: {
path: path.resolve(__dirname, 'dist'),
filename: 'library.min.js'
},
plugins: [
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
}
}),
new UnminifiedWebpackPlugin()
]
};
通过上述操作,您将得到library.min.js和library.js两个文件。不需要执行webpack两次,它只是工作!^ ^
webpack.config.js:
const webpack = require("webpack");
module.exports = {
entry: {
"bundle": "./entry.js",
"bundle.min": "./entry.js",
},
devtool: "source-map",
output: {
path: "./dist",
filename: "[name].js"
},
plugins: [
new webpack.optimize.UglifyJsPlugin({
include: /\.min\.js$/,
minimize: true
})
]
};
从Webpack 4开始,Webpack .optimize. uglifyjsplugin已被弃用,使用它会导致错误:
webpack.optimize.UglifyJsPlugin已被删除,请使用config.optimization.minimize代替
正如手册解释的那样,插件可以用最小化选项代替。自定义配置可以通过指定UglifyJsPlugin实例提供给插件:
const webpack = require("webpack");
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
module.exports = {
// ...
optimization: {
minimize: true,
minimizer: [new UglifyJsPlugin({
include: /\.min\.js$/
})]
}
};
这是一个简单的设置。一个更有效的解决方案是同时使用Gulp和Webpack,一次完成同样的事情。