22 lines
683 B
JavaScript
22 lines
683 B
JavaScript
|
// 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);
|
||
|
};
|
||
|
}
|