mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-25 09:55:15 +00:00
84 lines
2.4 KiB
Markdown
84 lines
2.4 KiB
Markdown
# raf
|
|
|
|
[](http://ci.testling.com/chrisdickinson/raf)
|
|
|
|
requestAnimationFrame polyfill for node and the browser.
|
|
|
|
```js
|
|
var raf = require('raf')
|
|
|
|
raf(function tick() {
|
|
// Animation logic
|
|
raf(tick)
|
|
})
|
|
```
|
|
|
|
**Note:** The stream/event emitter logic found in versions prior to 1.0.0 can be found in [raf-stream](https://www.npmjs.org/package/raf-stream).
|
|
|
|
## Getting started
|
|
|
|
### CommonJS (Node, Browserify, Webpack, etc.)
|
|
|
|
Install `raf` from npm:
|
|
|
|
```bash
|
|
npm install --save raf
|
|
```
|
|
|
|
Require it like you would any other module:
|
|
|
|
```js
|
|
const raf = require('raf')
|
|
```
|
|
|
|
### AMD (require.js, etc)
|
|
|
|
Download the UMD-bundle from [wzrd.in](https://wzrd.in/standalone/raf@latest) (remember to include the current version number in the filename).
|
|
|
|
Add it to your AMD module loader config and require it like you would any other module:
|
|
|
|
```html
|
|
define(['raf'], raf => {...})
|
|
```
|
|
|
|
### `<script>`
|
|
|
|
Download the UMD-bundle from [wzrd.in](https://wzrd.in/standalone/raf@latest) (remember to include the current version number in the filename).
|
|
|
|
Then include it via a script tag:
|
|
|
|
```html
|
|
<script src="raf-x.x.x.js"></script>
|
|
```
|
|
|
|
The API will be available on `window.raf`.
|
|
|
|
## API
|
|
|
|
[Documentation at Mozilla Developer Network](https://developer.mozilla.org/en-US/docs/Web/API/window.requestAnimationFrame), [W3 Specification](http://www.w3.org/TR/animation-timing/#requestAnimationFrame)
|
|
|
|
### var handle = raf(callback)
|
|
|
|
`callback` is the function to invoke in the next frame. `handle` is a long integer value that uniquely identifies the entry in the callback list. This is a non-zero value, but you may not make any other assumptions about its value.
|
|
|
|
### raf.cancel(handle)
|
|
|
|
`handle` is the entry identifier returned by `raf()`. Removes the queued animation frame callback (other queued callbacks will still be invoked unless cancelled).
|
|
|
|
### raf.polyfill([object])
|
|
|
|
Shorthand to polyfill `window.requestAnimationFrame` and `window.cancelAnimationFrame` if necessary (Polyfills `global` in node).
|
|
|
|
Alternatively you can require `raf/polyfill` which will act the same as `require('raf').polyfill()`.
|
|
|
|
If you provide `object` the polyfills are attached to that given object, instead of the inferred global.
|
|
Useful if you have an instance of a fake `window` object, and want to add `raf` and `caf` to it.
|
|
|
|
## Acknowledgments
|
|
|
|
Based on work by Erik Möller, Paul Irish, and Tino Zijdel (https://gist.github.com/paulirish/1579671)
|
|
|
|
## License
|
|
|
|
MIT
|