import raf from 'raf'; var id = 0; var ids = {}; // Support call raf with delay specified frame export default function wrapperRaf(callback) { var delayFrames = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1; var myId = id++; var restFrames = delayFrames; function internalCallback() { restFrames -= 1; if (restFrames <= 0) { callback(); delete ids[id]; } else { ids[id] = raf(internalCallback); } } ids[id] = raf(internalCallback); return myId; } wrapperRaf.cancel = function (id) { raf.cancel(ids[id]); delete ids[id]; };