JavaScript Minifier for Ruby

Free online javascript minifier with Ruby code examples

Working with javascript minifier in Ruby? Our free online javascript minifier helps Ruby developers format, validate, and process data instantly. Below you will find Ruby code examples using uglifier so you can achieve the same result programmatically in your own projects.

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Ruby Code Example

require 'uglifier'

js = <<~JS
  function greet(name) {
    // Say hello
    var message = 'Hello, ' + name + '!';
    console.log(message);
    return message;
  }
  greet('World');
JS

minified = Uglifier.compile(js, harmony: true)
puts minified

Quick Setup

Library: uglifier
gem install uglifier

Ruby Tips & Best Practices

  • Uglifier wraps UglifyJS for Ruby
  • Set harmony: true for ES6+ support
  • Used by the Rails asset pipeline for JS minification

Frequently Asked Questions

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