Benchmark: While vs For of vs For vs forEach

HTML Preparation code:

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

Script Preparation code:

const array = []
let i = 10000
while (i--) {
    array.push(i)
}

function whileLoop() {
    const newArray = []
    let i = array.length

    while (i--) {
        newArray.push(array[i])
    }
    return newArray
}

function forLoop() {
    const newArray = []
    for (let i = 0; i < array.length; i++) {
        newArray.push(array[i])
    }
    return newArray
}

function forOfLoop() {
    const newArray = []
    for (const item of array) {
        newArray.push(item)
    }
    return newArray
}

function forEachLoop() {
    const newArray = []
    array.forEach(item => {
        newArray.push(item)
    })
}

Tests:

While
whileLoop()
For
forLoop()
For.. of
forOfLoop()
forEach
forEachLoop()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
While
For
For.. of
forEach

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser/OS: Chrome 132 on Mac OS X 10.15.7

View result in a separate tab

For.. of

23K/s

forEach

23K/s

For

22K/s

While

21K/s

View exact numbers

Test name	Executions per second
✓ For.. of	22,590 Ops/sec
forEach	22,512 Ops/sec
For	22,434 Ops/sec
While	21,238 Ops/sec

While vs For of vs For vs forEach (version: 1)

Comparing performance of: `While vs For vs For.. of vs forEach`

Created: one year ago by: Registered User

Go to the latest result

While

For

For.. of

forEach

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

While vs For of vs For vs forEach (version: 1)

Comparing performance of: While vs For vs For.. of vs forEach

Created: one year ago by: Registered User

Go to the latest result

While

For

For.. of

forEach

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `While vs For vs For.. of vs forEach`