Benchmark: js array comparison - for vs find vs map vs foreach

HTML Preparation code:

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

Script Preparation code:

var arr = []
let i = 0
let len = 1000
for (; i < len; i++) {
    arr.push({
        ID: i,
        TestName: "Name"
    })
}

Tests:

For
let i = 0 let len = arr.length let foundIndex = -1 for (; i < len; i++) { if (arr[i].ID >= 999) { return arr[i] } }
find
const found = arr.find(function(element) { if(element.ID > 999){ return element }})
map
let foundMapIndex = arr.map(item => { if (item.ID > 999){ return i }})

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Firefox 6 runs

For

420K/s

find

108K/s

map

81K/s

Fastest: For (5.2x faster)

View exact numbers

✓ For: 419,880 ops/sec
• find: 108,463 ops/sec
• map: 81,135 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
For
find
map

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:147.0) Gecko/20100101 Firefox/147.0

Browser/OS: Firefox 147 on Linux

View result in a separate tab

For

493K/s

find

115K/s

map

87K/s

View exact numbers

Test name	Executions per second
✓ For	492,795 Ops/sec
find	114,944 Ops/sec
map	87,056 Ops/sec

js array comparison - for vs find vs map vs foreach (version: 1)

Comparing performance of: for vs prototype.find vs forEach vs map

Comparing performance of: `For vs find vs map`

Created: one year ago by: Guest

Go to the latest result

For

find

map

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Firefox 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

js array comparison - for vs find vs map vs foreach (version: 1)

Comparing performance of: for vs prototype.find vs forEach vs map

Comparing performance of: For vs find vs map

Created: one year ago by: Guest

Go to the latest result

For

find

map

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Firefox 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `For vs find vs map`