lbry-desktop/ui/util/debounce.js

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2018-03-26 23:32:43 +02:00
// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing.
export default function debouce(func, wait, immediate) {
let timeout;
return function() {
const context = this;
const args = arguments;
const later = () => {
timeout = null;
if (!immediate) func.apply(context, args);
};
const callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(context, args);
};
}