Benchmark: for vs foreach ej

Script Preparation code:

function generateTestArray() {
  const result = [];
  for (let i = 0; i < 1000000; ++i) {
    result.push({
      a: i,
      b: i / 2,
      r: 0,
    });
  }
  return result;
}

Tests:

.forEach
const array = generateTestArray(); array.forEach((x) => { x.r = x.a + x.b; });
for
const array = generateTestArray(); for(let index = 0; index < array.length; index++) { array[index].r = array[index].a + array[index].b; }
for name first
const array = generateTestArray(); for(let index = 0; index < array.length; index++) { const value = array[index] value.r = value.a + value.b; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
.forEach
for
for name first

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 11 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser/OS: Chrome 114 on Windows

View result in a separate tab

Test name	Executions per second
.forEach	14.3 Ops/sec
for	21.2 Ops/sec
for name first	21.0 Ops/sec

for vs foreach ej (version: 0)

Comparing performance of: .forEach vs for vs for name first

Created: 11 months ago by: Guest

Jump to the latest result

.forEach

for

for name first

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A