Created
December 14, 2015 14:55
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ES6 ModulesでrequestAnimationFrameのpolyfill
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let lastTime = 0; | |
const raf = | |
window.requestAnimationFrame || | |
window.webkitRequestAnimationFrame || | |
window.mozRequestAnimationFrame || | |
function(callback){ | |
const currentTime = Date.now(); | |
const timeToCall = Math.max(0, 16 - (currentTime - lastTime)); | |
const id = window.setTimeout(() => { callback(currentTime + timeToCall) }, timeToCall); | |
lastTime = currentTime + timeToCall; | |
return id; | |
}; | |
export default raf; |
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