Benchmark: test encore2 - MeasureThat.net

Script Preparation code:

function generateLargeTestRef() {
  const testRef = {};
  for (let i = 0; i < 1; i++) {
    testRef[`prop${i}`] = "x".repeat(2); // 1 million de caractères
  }
  return testRef;
}

// Créer le testRef_large avec 50 propriétés
const testRef_large = generateLargeTestRef();

// Créer 10 000 testObject avec 3 références à testRef_large
const testObject = Array.from({ length: 10 }, () => ({
  a: testRef_large,
  b: testRef_large,
  c: testRef_large,
}));

// Créer 10 000 testObject2 avec 5 références à testRef_large
const testObject2 = Array.from({ length: 10 }, () => ({
  a: testRef_large,
  b: testRef_large,
  c: testRef_large,
  e: testRef_large,
  f: testRef_large,
}));

Tests:

forEach 1
testObject.forEach(item => { console.log(item) });
forEach 2
testObject2.forEach(item => { console.log(item) });
for loop 1
for (let i = 0; i < testObject.length; i++) { console.log(testObject[i]) }
for loop 2
for (let i = 0; i < testObject2.length; i++) { console.log(testObject2[i]) }
for loop 1-2
for (let i = 0, l = testObject.length; i < l; i++) { console.log(testObject[i]) }
for loop 2-2
for (let i = 0, l = testObject2.length; i < l; i++) { console.log(testObject2[i]) }
for-in
for (let key in testObject) { console.log(testObject[key]) }
for-in 2
for (let key in testObject2) { console.log(testObject2[key]) }
for-of
for (let item of testObject) { console.log(item) }
for-of 2
for (let item of testObject2) { console.log(item) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
forEach 1
forEach 2
for loop 1
for loop 2
for loop 1-2
for loop 2-2
for-in
for-in 2
for-of
for-of 2

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Windows

View result in a separate tab

for loop 1

21K/s

for-in

21K/s

for-of 2

20K/s

for-of

19K/s

forEach 1

19K/s

for loop 1-2

18K/s

forEach 2

18K/s

for-in 2

18K/s

for loop 2-2

18K/s

for loop 2

16K/s

View exact numbers

Test name	Executions per second
✓ for loop 1	21,148 Ops/sec
for-in	20,941 Ops/sec
for-of 2	19,888 Ops/sec
for-of	18,920 Ops/sec
forEach 1	18,698 Ops/sec
for loop 1-2	18,426 Ops/sec
forEach 2	18,259 Ops/sec
for-in 2	18,053 Ops/sec
for loop 2-2	17,763 Ops/sec
for loop 2	16,395 Ops/sec

test encore2 (version: 1)

Comparing performance of: `forEach 1 vs forEach 2 vs for loop 1 vs for loop 2 vs for loop 1-2 vs for loop 2-2 vs for-in vs for-in 2 vs for-of vs for-of 2`

Created: one year ago by: Guest

Go to the latest result

forEach 1

forEach 2

for loop 1

for loop 2

for loop 1-2

for loop 2-2

for-in

for-in 2

for-of

for-of 2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

test encore2 (version: 1)

Comparing performance of: forEach 1 vs forEach 2 vs for loop 1 vs for loop 2 vs for loop 1-2 vs for loop 2-2 vs for-in vs for-in 2 vs for-of vs for-of 2

Created: one year ago by: Guest

Go to the latest result

forEach 1

forEach 2

for loop 1

for loop 2

for loop 1-2

for loop 2-2

for-in

for-in 2

for-of

for-of 2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `forEach 1 vs forEach 2 vs for loop 1 vs for loop 2 vs for loop 1-2 vs for loop 2-2 vs for-in vs for-in 2 vs for-of vs for-of 2`