Add debounce cancelling

17dc3fa4b50746874cc870dd68cdd8c92cb58515

Cohee <18619528+Cohee1207@users.noreply.github.com>

public/scripts/utils.js+19 -0 Viewed

+}
 /**
 + * Map of debounced functions to their timers.
 + * Weak map is used to avoid memory leaks.
 + * @type {WeakMap<function, any>}
 + */
 +const debounceMap = new WeakMap();
++
 +/**
  * Creates a debounced function that delays invoking func until after wait milliseconds have elapsed since the last time the debounced function was invoked.
  * @param {function} func The function to debounce.
  * @param {debounce_timeout|number} [timeout=debounce_timeout.default] The timeout based on the common enum values, or in milliseconds.

     return (...args) => {
         clearTimeout(timer);
         timer = setTimeout(() => { func.apply(this, args); }, timeout);
 +        debounceMap.set(func, timer);
     };
+}
 /**
 + * Cancels a scheduled debounced function. Does nothing if the function is not debounced or not scheduled.
 + * @param {function} func The function to cancel.
 + */
 +export function cancelDebounce(func) {
 +    if (debounceMap.has(func)) {
 +        clearTimeout(debounceMap.get(func));
 +        debounceMap.delete(func);
 +    }
 +}
++
 +/**
  * Creates a throttled function that only invokes func at most once per every limit milliseconds.
  * @param {function} func The function to throttle.
  * @param {number} [limit=300] The limit in milliseconds.