![](/img/trans.png)
[英]ERROR in bundle.js from UglifyJs SyntaxError: Unexpected token: name (Handler)
[英]ERROR from UglifyJs: SyntaxError: Unexpected token: operator (>)
嘗試運行我的 webpack 進行生產時出現錯誤。
ERROR in js/main.21dbce548a76ffc14cfb.js from UglifyJs
SyntaxError: Unexpected token: operator (>) [./~/tmi.js/lib/utils.js:3,0][js/main.21dbce548a76ffc14cfb.js:3529,20]
utils.js:3,0(與我縮小的 js 中的相同)是:
// Return the second value if the first value is undefined..
get: (obj1, obj2) => { return typeof obj1 === "undefined" ? obj2 : obj1; },
所以我假設錯誤被拋出是因為它正在讀取 ES6 但它不理解 ES6? (箭頭函數)
我不明白這里出了什么問題,這是我的 webpack.config.js
// changed some loader syntax after reading
// https://webpack.js.org/how-to/upgrade-from-webpack-1/
const path = require(`path`);
const webpack = require(`webpack`);
const {UglifyJsPlugin} = webpack.optimize;
const CopyWebpackPlugin = require(`copy-webpack-plugin`);
const ExtractTextWebpackPlugin = require(`extract-text-webpack-plugin`);
const configHtmls = require(`webpack-config-htmls`)();
const extractCSS = new ExtractTextWebpackPlugin(`css/style.css`);
// change for production build on different server path
const publicPath = `/`;
// hard copy assets folder for:
// - srcset images (not loaded through html-loader )
// - json files (through fetch)
// - fonts via WebFontLoader
const copy = new CopyWebpackPlugin([{
from: `./src/assets`,
to: `assets`
}], {
ignore: [ `.DS_Store` ]
});
const config = {
entry: [
`./src/css/style.css`,
`./src/js/script.js`
],
resolve: {
// import files without extension import ... from './Test'
extensions: [`.js`, `.jsx`, `.css`]
},
output: {
path: path.join(__dirname, `server`, `public`),
filename: `js/[name].[hash].js`,
publicPath
},
devtool: `sourcemap`,
module: {
rules: [
{
test: /\.css$/,
loader: extractCSS.extract([
{
loader: `css`,
options: {
importLoaders: 1
}
},
{
loader: `postcss`
}
])
},
{
test: /\.html$/,
loader: `html`,
options: {
attrs: [
`audio:src`,
`img:src`,
`video:src`,
`source:srcset`
] // read src from video, img & audio tag
}
},
{
test: /\.(jsx?)$/,
exclude: /node_modules/,
use: [
{
loader: `babel`
},
{
loader: `eslint`,
options: {
fix: true
}
}
]
},
{
test: /\.(svg|png|jpe?g|gif|webp)$/,
loader: `url`,
options: {
limit: 1000, // inline if < 1 kb
context: `./src`,
name: `[path][name].[ext]`
}
},
{
test: /\.(mp3|mp4)$/,
loader: `file`,
options: {
context: `./src`,
name: `[path][name].[ext]`
}
}
]
},
plugins: [
extractCSS,
copy
]
};
if(process.env.NODE_ENV === `production`){
//image optimizing
config.module.rules.push({
test: /\.(svg|png|jpe?g|gif)$/,
loader: `image-webpack`,
enforce: `pre`
});
config.plugins = [
...config.plugins,
new UglifyJsPlugin({
sourceMap: true, // false returns errors.. -p + plugin conflict
comments: false
})
];
}
config.plugins = [...config.plugins, ...configHtmls.plugins];
module.exports = config;
OP 的錯誤來自 UglifyJs,已在接受的答案中解決,此頁面的某些人可能會從 babel 收到錯誤,在這種情況下,請使用以下方法修復它:將"presets": ["es2015"]
到options.presets
babel-loader 的部分,或者到.babelrc
。
就我而言,我使用的是 webpack 1.14 版,我從git ref那里得到了幫助
步驟:
yarn add uglifyes-webpack-plugin
(並刪除yarn remove uglifyjs-webpack-plugin
)yarn add uglify-js-es6
new webpack.optimize.UglifyJsPlugin
new UglifyJsPlugin
更改為new UglifyJsPlugin
然后我就可以建造了。 謝謝
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