@rooks/use-timeout-when/lib/index.js

Takes a callback and fires it when a condition is true

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('react')) :
  typeof define === 'function' && define.amd ? define(['react'], factory) :
  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.useTimeoutWhen = factory(global.React));
}(this, (function (react) { 'use strict';

  /**
   * A setTimeout hook that calls a callback after a timeout duration
   * when a condition is true
   * @param cb The callback to be invoked after timeout
   * @param timeoutDelayMs Amount of time in ms after which to invoke
   * @param when The condition which when true, sets the timeout
   */
  function useTimeoutWhen(cb, timeoutDelayMs = 0, when = true) {
      const savedRefCallback = react.useRef();
      react.useEffect(() => {
          savedRefCallback.current = cb;
      });
      function callback() {
          savedRefCallback.current && savedRefCallback.current();
      }
      react.useEffect(() => {
          if (when) {
              const timeout = window.setTimeout(callback, timeoutDelayMs);
              return () => {
                  window.clearTimeout(timeout);
              };
          }
      }, [when]);
  }

  return useTimeoutWhen;

})));
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