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Cancel old timer, editing pr #4139 (#4187)

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* Cancel old timer, editing pr for $4139
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moonformeli
2019-02-12 15:50:11 +09:00
committed by John-David Dalton
parent 3ae8f23bff
commit fe7da41956
1 changed files with 2 additions and 1 deletions
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debounce.js
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@@ -78,7 +78,7 @@ function debounce(func, wait, options) {
// Bypass `requestAnimationFrame` by explicitly setting `wait=0`. // Bypass `requestAnimationFrame` by explicitly setting `wait=0`.
const useRAF = (!wait && wait !== 0 && typeof root.requestAnimationFrame === 'function') const useRAF = (!wait && wait !== 0 && typeof root.requestAnimationFrame === 'function')
if (typeof func != 'function') { if (typeof func !== 'function') {
throw new TypeError('Expected a function') throw new TypeError('Expected a function')
} }
wait = +wait || 0 wait = +wait || 0
@@ -101,6 +101,7 @@ function debounce(func, wait, options) {
function startTimer(pendingFunc, wait) { function startTimer(pendingFunc, wait) {
if (useRAF) { if (useRAF) {
root.cancelAnimationFrame(timerId);
return root.requestAnimationFrame(pendingFunc) return root.requestAnimationFrame(pendingFunc)
} }
return setTimeout(pendingFunc, wait) return setTimeout(pendingFunc, wait)