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Simple library for handling keyboard shortcuts in Javascript

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README.md

Mousetrap

Mousetrap is a simple library for handling keyboard shortcuts in Javascript.

It is around 1.5kb minified and gzipped, has no external dependencies, and has been tested in the following browsers:

  • Internet Explorer 6+
  • Safari
  • Firefox
  • Chrome

It has support for keypress, keydown, and keyup events on specific keys, keyboard combinations, or key sequences.

Getting started

  1. Include mousetrap on your page before the closing <body> tag

    <script src="/path/to/mousetrap.min.js"></script>
    
  2. Add some keyboard events to listen for

    <script>
        // single keys
        Mousetrap.bind('4', function() { console.log('4'); });
        Mousetrap.bind("$", function() { console.log('money!'); }, 'keydown');
        Mousetrap.bind('esc', function() { console.log('escape'); }, 'keyup');
    
        // combinations
        Mousetrap.bind('command+shift+K', function() { console.log('command shift k'); });
        Mousetrap.bind(['command+k', 'ctrl+k'], function() { console.log('command k or control k'); });
    
        // gmail style sequences
        Mousetrap.bind('g i', function() { console.log('go to inbox'); });
        Mousetrap.bind('* a', function() { console.log('select all'); });
    
        // konami code!
        Mousetrap.bind('up up down down left right left right b a enter', function() {
            console.log('konami code');
        });
    </script>
    

Why Mousetrap?

There are a number of other similar libraries out there so what makes this one different?

  • There are no external dependencies, no framework is required
  • You are not limited to keydown events (You can specify keypress, keydown, or keyup or let Mousetrap choose for you).
  • You can bind key events directly to special keys such as ? or *
  • It works with international keyboard layouts by intelligently choosing when to use keypress vs. keydown depending on what key you bind.
  • You can bind Gmail like key sequences in addition to regular keys and key combinations
  • You can programatically trigger key events with the trigger() method
  • It works with the numeric keypad on your keyboard
  • The code is well documented/commented

Documentation

Full documentation can be found at http://craig.is/killing/mice

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