[英]Source Maps Not Generated by WebPack
不可否认,我对source maps
和webpack
有基本的了解。 我的理解是,如果我在webpack.config.js
文件中正确设置devtools
,我应该获得映射到原始代码的源映射文件。
我正在使用以下配置文件,我没有得到任何源映射文件。 知道为什么吗?
var IS_DEV = false;
var webpack = require('webpack');
var path = require("path");
// Define plugins needed for production and dev cases
var _pluginsDev = [
new webpack.ProvidePlugin({
'fetch': 'imports-loader?this=>global!exports-loader?global.fetch!whatwg-fetch',
moment: 'moment',
ps: 'perfect-scrollbar'
}),
];
var _pluginsProd = [
new webpack.ProvidePlugin({
'fetch': 'imports-loader?this=>global!exports-loader?global.fetch!whatwg-fetch',
moment: 'moment',
ps: 'perfect-scrollbar'
}),
new webpack.DefinePlugin({
'process.env': {
'NODE_ENV': JSON.stringify('production')
}
}),
new webpack.optimize.UglifyJsPlugin({
minimize: true,
compress: true,
output: { comments: false }
})
];
var _devtool = IS_DEV ? 'eval' : 'cheap-module-source-map';
var _plugins = IS_DEV ? _pluginsDev : _pluginsProd;
var _fileName = IS_DEV ? "./build/[name]-bundle.js" : "./dist/[name]-bundle.js";
var _bundles = {
login: './components/login/login.jsx',
home: './components/home/home.jsx'
};
module.exports = {
entry: _bundles,
output: {
path: path.resolve(__dirname, "wwwroot"),
publicPath: "/",
filename: _fileName
},
devtool: _devtool,
plugins: _plugins,
module: {
rules: [
{
test: /\.jsx?$/,
exclude: /(node_modules|bower_components)/,
use: {
loader: "babel-loader",
options: {
presets: ['es2015', 'stage-2', 'stage-0', 'react']
}
}
}
]
},
resolve: {
extensions: ['.js', '.jsx']
}
}
根据文件,
使用uglifyjs-webpack-plugin时,必须提供sourceMap:true选项以启用SourceMap支持。
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