Run results for: Memoization functions

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.3.1

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Memoize	302.6 Ops/sec
Memoize without closure	291.5 Ops/sec

Script Preparation code:

//------------------ SETUP
function memoizeWithoutClosure(fn) {
  const memoizedFunction = () => {
    if (memoizedFunction.cache === undefined) {
      memoizedFunction.cache = fn();
    }
    return memoizedFunction.cache;
  };

  return memoizedFunction;
}

function memoize(fn) {
  let cachedResult;

  return () => {
    if (cachedResult === undefined) {
      cachedResult = fn();
    }
    return cachedResult;
  };
} 

var funcs =  [...Array(5000).keys()].map(_ => (() => 'ashkjsaskhkajhdkajhdk'));



//----------- MEMOIZE WIthour Closure
const memoizedFuncs = funcs.map(fn => memoizeWithoutClosure(fn));
memoizedFuncs.forEach(fn => fn());
memoizedFuncs.forEach(fn => fn());

Tests:

Memoize
//------------ MEMOIZE const memoizedFuncs = funcs.map(fn => memoize(fn)); memoizedFuncs.forEach(fn => fn()); memoizedFuncs.forEach(fn => fn());
Memoize without closure
//----------- MEMOIZE without Closure const memoizedFuncs = funcs.map(fn => memoizeWithoutClosure(fn)); memoizedFuncs.forEach(fn => fn()); memoizedFuncs.forEach(fn => fn());

Run results for: Memoization functions

Test different memoization functions

Memoize

Memoize without closure