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rollup-plugin-terser

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rollup-plugin-terser

Rollup plugin to minify generated es bundle

  • 7.0.2
  • latest
  • Source
  • npm
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What is rollup-plugin-terser?

The rollup-plugin-terser package is a plugin for Rollup, a module bundler for JavaScript, which allows you to minify your JavaScript files using Terser. Minification is the process of removing unnecessary characters from code to reduce its size, thus improving load times in browsers. This plugin integrates Terser into the Rollup build process.

What are rollup-plugin-terser's main functionalities?

Minification

This feature allows you to minify your JavaScript files. The code sample shows how to include the terser plugin in the Rollup configuration to minify the output bundle.

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

export default {
  input: 'src/index.js',
  output: {
    file: 'bundle.min.js',
    format: 'iife'
  },
  plugins: [
    terser()
  ]
};

Compress Options

This feature allows you to specify Terser compress options to customize the minification process. In the code sample, the `drop_console` option is set to `true` to remove console logs from the output.

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

export default {
  // ... other rollup config
  plugins: [
    terser({
      compress: {
        drop_console: true
      }
    })
  ]
};

Mangle Options

This feature allows you to mangle property names matching a pattern to shorten the code. In the code sample, properties starting with an underscore are mangled.

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

export default {
  // ... other rollup config
  plugins: [
    terser({
      mangle: {
        properties: {
          regex: /^_/ 
        }
      }
    })
  ]
};

Source Maps

This feature allows you to generate source maps for the minified code, which can be useful for debugging purposes. The code sample demonstrates how to enable source map generation in the Rollup configuration.

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

export default {
  // ... other rollup config
  output: {
    // ... other output options
    sourcemap: true
  },
  plugins: [
    terser({
      sourceMap: true
    })
  ]
};

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Package last updated on 04 Sep 2020

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