Run results for: JavaScript spread operator vs Object.assign performance fixed 4

Run details:

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 Edg/114.0.1823.43

Browser: Chrome 114

Operating system: Windows

Device Platform: Desktop

Date tested: 11 months ago

Test name	Executions per second
Using the spread operator	306521.1 Ops/sec
Using Object.assign	1296806.0 Ops/sec

Script Preparation code:

var firstObject = {
    sampleData: 'Hello world'
}
var secondObject2 = {
    moreData32: 'foo bar'
}
var secondObject3 = {
    moreData323232: 'foo bar'
}
var secondObject4 = {
    moreData32: 'foo bar'
}
var secondObject5 = {
    more32Data: 'foo bar'
}
var secondObject6 = {
    mo3232reData: 'foo bar'
}
var secondObject7 = {
    moreDat3232a: 'foo bar'
}

Tests:

Using the spread operator
const finalObject = { ...firstObject, ...secondObject2, ...secondObject3, ...secondObject4, ...secondObject5, ...secondObject6, ...secondObject7, };
Using Object.assign
const finalObject = Object.assign({},firstObject, secondObject2, secondObject3, secondObject4, secondObject5, secondObject6, secondObject7,);

Run results for: JavaScript spread operator vs Object.assign performance fixed 4

Using the spread operator

Using Object.assign