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Gator is a Javascript event delegation library.

It is around 800 bytes when gzipped and minified and has no external dependencies.

Browser Support

Out of the box Gator works in

  • Chrome
  • Safari 5+
  • Firefox 3.6+
  • Internet Explorer 9+

The legacy.js plugin adds support for

  • Safari < 5
  • Firefox < 3.6
  • Internet Explorer 6, 7, 8

When using the legacy plugin only single classes, single ids, and single tag names are supported for selectors

Getting Started

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

    <script src="/path/to/gator.min.js"></script>
  2. Add some events

        // add a click event to document that checks for elements with class expand
        Gator(document).on('click', '.expand', function(e) {
            console.log('clicked on', this);
            return false;
        // add a click event to document with no delegation
        Gator(document).on('click', function() {
            console.log('clicked on document!');
        // remove all click events on .expand
        Gator(document).off('click', '.expand');
        // remove all click events on document


Full documentation is available at