gree_leran/node_modules/delegate/readme.md

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# 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](https://github.com/zenorocha/delegate/archive/master.zip) file.
## Setup
###### Node (Browserify)
```js
var delegate = require('delegate');
```
###### Browser (Standalone)
```html
<script src="dist/delegate.js"></script>
```
## Usage
### Add event delegation
#### With the default base (`document`)
```js
delegate('.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);
```
#### With an element as base
```js
delegate(document.body, '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);
```
#### With a selector (of existing elements) as base
```js
delegate('.container', '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);
```
#### With an array/array-like of elements as base
```js
delegate(document.querySelectorAll('.container'), '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);
```
### Remove event delegation
#### With a single base element (default or specified)
```js
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.
```js
var delegations = delegate('.container', '.btn', 'click', function(e) {
console.log(e.delegateTarget);
}, false);
delegations.forEach(function (delegation) {
delegation.destroy();
});
```
## Browser Support
| <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"> |
|:---:|:---:|:---:|:---:|:---:|:---:|
| Latest ✔ | Latest ✔ | Latest ✔ | 9+ ✔ | Latest ✔ | Latest ✔ |
## License
[MIT License](http://zenorocha.mit-license.org/) © Zeno Rocha