Using terser webpack plugin how to avoid building with comments

Question

I am using the terser webpack plugin. I tried with this configuration.

optimization: {
    minimize: true,
    minimizer: [
      new TerserPlugin({
        terserOptions: {
          output: {
            comments: false,
          },
        },
      }),
    ],

But still, it outputs a.LICENSE file. How to build the code without comments.

Answer 1

Should be

new TerserPlugin({
    extractComments: false,
})

see https://github.com/webpack-contrib/terser-webpack-plugin#extractcomments

Answer 2

With boolean terser will try to produce some licence comments and.txt files:

extractComments: false,

This solution works for me:

new TerserPlugin({
  extractComments: (astNode, comment) => false,
})

Webpack terser documentation

Answer 3

The docs also give an example for "if you avoid building with comments":

module.exports = {
  optimization: {
    minimize: true,
    minimizer: [
      new TerserPlugin({
        terserOptions: {
          format: {
            comments: false,
          },
        },
        extractComments: false,
      }),
    ],
  },
};

Note: Both the extractComments: false and terserOptions: { format: { comments: false } } options are used.