Run results for: debounce ramda vs. lodash

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.3.2

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

ramda

25.4M/s

lodash

19.6M/s

View exact numbers

Test name	Executions per second
✓ ramda	25,404,072 Ops/sec
lodash	19,594,222 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/ramda/0.27.1/ramda.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>

Script Preparation code:

var debounceR = R.curry((config, fn) => {
    const { delay, initialInstant = false } = (R.is(Number, config)
        ? { delay: config }
        : config);
    let timer = null;
    let firstCall = false;
    return (...args) => new Promise((resolve, reject) => {
        const safeCall = () => {
            try {
                resolve(fn.apply(window, args));
            }
            catch (e) {
                reject(e);
            }
        };
        if (!firstCall) {
            firstCall = true;
            if (initialInstant) {
                safeCall();
                return;
            }
        }
        if (!R.isNil(timer)) {
            clearTimeout(timer);
        }
        timer = setTimeout(safeCall, delay);
    });
});


var debounceV = (func, timeout) => {
  let timer;
  return (...args) => {
    clearTimeout(timer);
    timer = setTimeout(() => { func.apply(this, args); }, timeout);
  };
}

var handler = () => {};

Tests:

ramda
debounceR({delay: 0}, handler)
lodash
_.debounce(handler, 0)