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- import global from './global.js';
- /**
- * A shim for the requestAnimationFrame which falls back to the setTimeout if
- * first one is not supported.
- *
- * @returns {number} Requests' identifier.
- */
- export default (() => {
- if (typeof requestAnimationFrame === 'function') {
- // It's required to use a bounded function because IE sometimes throws
- // an "Invalid calling object" error if rAF is invoked without the global
- // object on the left hand side.
- return requestAnimationFrame.bind(global);
- }
- return callback => setTimeout(() => callback(Date.now()), 1000 / 60);
- })();
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