Webpack 4 - 如何配置最小化?

问题描述

Webpack 4 附带以下声明:

Webpack 4 comes with the following statement:

错误:webpack.optimize.UglifyJsPlugin 已被删除，请改用 config.optimization.minimize.

很公平，但我找不到有关配置在后台运行的 UglifyJsPlugin 实例的任何信息，例如更改缓存目录.可以这样做吗?

Fair enough, but I cannot find any information about configuring the UglifyJsPlugin instance running under the hood, for example to change the cache directory. Can this be done?

推荐答案

无法修改默认配置.

不过，您可以使用 optimization.minimizer 设置来实例化您自己的 UglifyJsPlugin.使用 4.0，即使 mode 设置为 'production'(例如，4.1.1 不再需要)，我们也使用此示例获取源映射:

You can use the optimization.minimizer setting to instantiate your own UglifyJsPlugin, however. Using 4.0 we used this example to get source maps even when mode is set to 'production' for example (no longer necessary as of 4.1.1):

const UglifyJsPlugin = require('uglifyjs-webpack-plugin');

module.exports = {
  optimization: {
    minimizer: [
      // we specify a custom UglifyJsPlugin here to get source maps in production
      new UglifyJsPlugin({
        cache: true,
        parallel: true,
        uglifyOptions: {
          compress: false,
          ecma: 6,
          mangle: true
        },
        sourceMap: true
      })
    ]
  }
};

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