mirror of
https://github.com/BookStackApp/BookStack.git
synced 2024-12-03 06:13:37 +08:00
27 lines
867 B
JavaScript
27 lines
867 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.
|
|
* @attribution https://davidwalsh.name/javascript-debounce-function
|
|
* @param func
|
|
* @param wait
|
|
* @param immediate
|
|
* @returns {Function}
|
|
*/
|
|
export function debounce(func, wait, immediate) {
|
|
let timeout;
|
|
return function() {
|
|
const context = this, args = arguments;
|
|
const later = function() {
|
|
timeout = null;
|
|
if (!immediate) func.apply(context, args);
|
|
};
|
|
const callNow = immediate && !timeout;
|
|
clearTimeout(timeout);
|
|
timeout = setTimeout(later, wait);
|
|
if (callNow) func.apply(context, args);
|
|
};
|
|
}; |