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100 lines
2.5 KiB
100 lines
2.5 KiB
1 year ago
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# delegate
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Lightweight event delegation.
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## Install
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You can get it on npm.
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```
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npm install delegate --save
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```
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If you're not into package management, just [download a ZIP](https://github.com/zenorocha/delegate/archive/master.zip) file.
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## Setup
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###### Node (Browserify)
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```js
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var delegate = require('delegate');
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```
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###### Browser (Standalone)
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```html
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<script src="dist/delegate.js"></script>
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```
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## Usage
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### Add event delegation
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#### With the default base (`document`)
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```js
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delegate('.btn', 'click', function(e) {
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console.log(e.delegateTarget);
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}, false);
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```
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#### With an element as base
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```js
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delegate(document.body, '.btn', 'click', function(e) {
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console.log(e.delegateTarget);
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}, false);
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```
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#### With a selector (of existing elements) as base
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```js
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delegate('.container', '.btn', 'click', function(e) {
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console.log(e.delegateTarget);
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}, false);
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```
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#### With an array/array-like of elements as base
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```js
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delegate(document.querySelectorAll('.container'), '.btn', 'click', function(e) {
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console.log(e.delegateTarget);
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}, false);
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```
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### Remove event delegation
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#### With a single base element (default or specified)
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```js
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var delegation = delegate(document.body, '.btn', 'click', function(e) {
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console.log(e.delegateTarget);
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}, false);
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delegation.destroy();
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```
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#### With multiple elements (via selector or array)
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Note: selectors are always treated as multiple elements, even if one or none are matched. `delegate()` will return an array.
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```js
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var delegations = delegate('.container', '.btn', 'click', function(e) {
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console.log(e.delegateTarget);
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}, false);
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delegations.forEach(function (delegation) {
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delegation.destroy();
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});
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```
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## Browser Support
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| <img src="https://clipboardjs.com/assets/images/chrome.png" width="48px" height="48px" alt="Chrome logo"> | <img src="https://clipboardjs.com/assets/images/edge.png" width="48px" height="48px" alt="Edge logo"> | <img src="https://clipboardjs.com/assets/images/firefox.png" width="48px" height="48px" alt="Firefox logo"> | <img src="https://clipboardjs.com/assets/images/ie.png" width="48px" height="48px" alt="Internet Explorer logo"> | <img src="https://clipboardjs.com/assets/images/opera.png" width="48px" height="48px" alt="Opera logo"> | <img src="https://clipboardjs.com/assets/images/safari.png" width="48px" height="48px" alt="Safari logo"> |
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|:---:|:---:|:---:|:---:|:---:|:---:|
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| Latest ✔ | Latest ✔ | Latest ✔ | 9+ ✔ | Latest ✔ | Latest ✔ |
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## License
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[MIT License](http://zenorocha.mit-license.org/) © Zeno Rocha
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