HTML5 Game - Cancel Animation Frame

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Introduction

Similar to setTimeout(), requestAnimationFrame() returns a request ID which can be used to cancel the request via cancelAnimationFrame().

In the following example, the request callback is enqueued but immediately cancelled: 

let requestID = window.requestAnimationFrame(() => { 
   console.log('Repaint!'); 
}); 
window.cancelAnimationFrame(requestID);

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