Run results for: Object creation vs assign

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser: Chrome 117

Operating system: Linux

Device Platform: Desktop

Date tested: 6 months ago

Tests:

New object
function createObject(total) { return { a: 1, b: 1, c: 1, d: 1, e: 1, f: 1, g: 1, h: 1, i: 1, j: 1, k: 1, l: 1, total: total } } createObject(1)
Spread
const firstObject = { a: 1, b: 1, c: 1, d: 1, e: 1, f: 1, g: 1, h: 1, i: 1, j: 1, k: 1, l: 1, } function createObject(total) { return { ...firstObject, total: total } } createObject(1)
Assign
const firstObject = { a: 1, b: 1, c: 1, d: 1, e: 1, f: 1, g: 1, h: 1, i: 1, j: 1, k: 1, l: 1, } function createObject(total) { return Object.assign({ total: total }, firstObject); } createObject(1)