Question

我使用webpack捆绑模块用ES6编写的反应。所有这些都已经工作，直到我添加了json-immutable插件。需要json-stream-stringify并且有一个类：

class JSONStreamify extends CoStream {...}
module.exports = function(obj, replacer) {
    return new JSONStreamify(obj, replacer);
};

webpack运行良好，但不会通知文件，因为Uglify会抛出错误

Unexpected token: name (JSONStreamify)

我在这里找到了关于模块https://github.com/webpack-contrib/uglifyjs-webpack-plugin的信息。我安装并添加了ecma支持，但我仍然遇到相同的错误。我删除了我已尝试添加排除node_modules但没有结果。

我的webpack.config.js是

const path = require('path');
const webpack = require('webpack');
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
module.exports = {
  entry: {
    backend: './src/backend.js',
    frontend: './src/frontend.js',
  },
  output: {
    path: path.resolve(__dirname,'./dist'),
    filename: '[name].sakui.min.js'
  },
  externals: {
    'jQuery':'jQuery',
    'Foundation':'Foundation',
    'react': 'React',
    'react-dom': 'ReactDOM',
    'redux': 'Redux',
    'react-redux': 'ReactRedux',
    'immutable': 'Immutable',
    'lodash': '_',
    '_': '_'
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            "only": "src/**",
            "presets": [
              "env",
              "react",
              "es2017",
              "stage-3"
            ],
            "plugins": [["transform-class-properties", { "spec": true }],"transform-decorators-legacy","minify-simplify"],
            "babelrc": false
          }
        }
      }
    ]
  },
  plugins: [
    new UglifyJSPlugin({
      ecma: 6
    })
  ]
}

任何提示我如何解决这个问题？也许任何外部工具在webpack之后缩小文件？

Answer 1

解决方案：

我发现的一种方式是通过babel到ES5的node_modules进行全部转换，并且它可以工作。

我的webpack.config.js

const path = require('path');
const webpack = require('webpack');
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
module.exports = {
  entry: {
    backend: './src/backend.js',
    frontend: './src/frontend.js',
  },
  output: {
    path: path.resolve(__dirname,'./dist'),
    filename: '[name].sakui.min.js'
  },
  externals: {
    'jQuery':'jQuery',
    'Foundation':'Foundation',
    'react': 'React',
    'react-dom': 'ReactDOM',
    'redux': 'Redux',
    'react-redux': 'ReactRedux',
    'immutable': 'Immutable',
    'lodash': '_',
    '_': '_'
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        use: {
          loader: 'babel-loader',
          options: {
            "presets": [
              "env",
              "react",
              "es2017",
              "stage-3"
            ],
            "plugins": [["transform-class-properties", { "spec": true }],"transform-decorators-legacy"],
            "babelrc": false
          }
        }
      }
    ]
  },
  plugins: [
    new UglifyJSPlugin()
  ]
}

也许对某人有用。

webpack 2 uglify插件ES6

1 个答案: