Run results for: Object key sorting: forEach vs Object.fromEntries 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser: Chrome 142

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 9 months ago

forEach

9K/s

Object.fromEntries

1K/s

View exact numbers

Test name	Executions per second
✓ forEach	9,140 Ops/sec
Object.fromEntries	1,141 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const testObj1 = {};
const testObj2 = {};
for (let i = 0; i < 1000; i++) {
  testObj1[`key_${Math.random().toString(36).substring(7)}`] = Math.random();
  testObj2[`key_${Math.random().toString(36).substring(7)}`] = Math.random();
}

function keySortedForEach(obj) {
  const sortedKeys = Object.keys(obj).sort();
  const sortedObj = {};
  sortedKeys.forEach(key => {
    sortedObj[key] = obj[key];
  });
  return sortedObj;
}

function keySortedFromEntries(obj) {
  return Object.fromEntries(
    Object.entries(obj).sort(([keyA], [keyB]) => keyA.localeCompare(keyB))
  );
}

Tests:

forEach
// Benchmark 1 keySortedForEach(testObj1);
Object.fromEntries
// Benchmark 2 keySortedFromEntries(testObj2);