Benchmark: Object Array update prop1

Script Preparation code:

var array = (new Array(100)).fill(0).map((x, i) => {
    return {
        value: i + 1,
        name: `name ${i+1}`,
        nameDealer: `nameDealer ${i+1}`
    }
})

Tests:

For in
for (let accessory of array) { console.log(accessory); if (accessory.nameDealer) { accessory.name = accessory.nameDealer; } }
For each
array.forEach((item) => { console.log(item); if (item.nameDealer) { item.name = item.nameDealer; } })

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
For in
For each

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Browser/OS: Chrome 118 on Windows

View result in a separate tab

Test name	Executions per second
For in	2637.8 Ops/sec
For each	2437.8 Ops/sec

Object Array update prop1 (version: 1)

Test update 1 value of each of the objects in a n array

Comparing performance of: For in vs For each

Created: 6 months ago by: Registered User

Jump to the latest result

For in

For each

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A