Package Exports

rollup-plugin-uglify

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (rollup-plugin-uglify) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

rollup-plugin-uglify

Rollup plugin to minify generated bundle.

Install

npm i rollup-plugin-uglify -D

Usage

import { rollup } from 'rollup';
import uglify from 'rollup-plugin-uglify';

rollup({
    entry: 'main.js',
    plugins: [
        uglify()
    ]
});

Options

uglify(options, minifier)

options – default: {}, type: object. UglifyJS API options

minifier – default: require('uglify-es').minify, type: function. Module to use as a minifier. You can use other versions (or forks) of UglifyJS instead default one.

Examples

Comments

If you'd like to preserve comments (for licensing for example), then you can specify a function to do this like so:

uglify({
  output: {
    comments: function(node, comment) {
        var text = comment.value;
        var type = comment.type;
        if (type == "comment2") {
            // multiline comment
            return /@preserve|@license|@cc_on/i.test(text);
        }
    }
  }
});

Alternatively, you can also choose to keep all comments (e.g. if a licensing header has already been prepended by a previous rollup plugin):

uglify({
  output: {
    comments: 'all'
  }
});

See UglifyJS documentation for further reference.