Run results for: JavaScript spread operator vs Object.assign performance 22478

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser: Chrome 107

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Spread operator	951619.9 Ops/sec
Object.assign	2124945.2 Ops/sec

Script Preparation code:

const obj1 = { a: "a" };
const obj2 = { b: "b" };

window.obj1 = obj1;
window.obj2 = obj2;

Tests: