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Update recordAnimationFrames.md

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Angelos Chalaris
2018-03-06 09:10:09 +02:00
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parent 9cca4b40d9
commit 0121ccff1e
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snippets/recordAnimationFrames.md
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@ -2,8 +2,10 @@
Invokes the provided callback on each animation frame. Invokes the provided callback on each animation frame.
Use recursion. Provided that `running` is `true`, continue invoking `window.requestAnimationFrame()` which invokes the Use recursion.
provided callback. Return an object with two methods `start` and `stop` to allow manual control of the recording. Omit the second argument, `autoStart`, to implicitly call `start` when the function is invoked. Provided that `running` is `true`, continue invoking `window.requestAnimationFrame()` which invokes the provided callback.
Return an object with two methods `start` and `stop` to allow manual control of the recording.
Omit the second argument, `autoStart`, to implicitly call `start` when the function is invoked.
```js ```js
const recordAnimationFrames = (callback, autoStart = true) => { const recordAnimationFrames = (callback, autoStart = true) => {
@ -28,9 +30,9 @@ const recordAnimationFrames = (callback, autoStart = true) => {
``` ```
```js ```js
const cb = () => console.log('Animation frame fired') const cb = () => console.log('Animation frame fired');
const recorder = recordAnimationFrames(cb) // logs 'Animation frame fired' on each animation frame const recorder = recordAnimationFrames(cb); // logs 'Animation frame fired' on each animation frame
recorder.stop() // stops logging recorder.stop(); // stops logging
recorder.start() // starts again recorder.start(); // starts again
const recorder2 = recordAnimationFrames(cb, false) // `start` needs to be explicitly called to begin recording frames const recorder2 = recordAnimationFrames(cb, false); // `start` needs to be explicitly called to begin recording frames
``` ```