delegate
Lightweight event delegation.
Install
You can get it on npm.
npm install delegate --save
If you're not into package management, just download a ZIP file.
Setup
Node (Browserify)
var delegate = require('delegate');Browser (Standalone)
<script src="dist/delegate.js"></script>Usage
Add event delegation
With the default base (document)
delegate('.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);With an element as base
delegate(document.body, '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);With a selector (of existing elements) as base
delegate('.container', '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);With an array/array-like of elements as base
delegate(document.querySelectorAll('.container'), '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);Remove event delegation
With a single base element (default or specified)
var delegation = delegate(document.body, '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);
delegation.destroy();With multiple elements (via selector or array)
Note: selectors are always treated as multiple elements, even if one or none are matched. delegate() will return an array.
var delegations = delegate('.container', '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);
delegations.forEach(function (delegation) {
delegation.destroy();
});Browser Support
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License
MIT License © Zeno Rocha