Run results for: Object Assign vs Manual Assign

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/110.0

Browser: Firefox 110

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object Assign	104.6 Ops/sec
Manual Assign	569.2 Ops/sec

Tests:

Object Assign
function hello(v) { Object.assign(v, {a:1,b:2,c:3,d:4}) } for (let i = 0; i < 100000; i++) { hello({}) }
Manual Assign
function hello(v) { v.a = 1 v.b = 2 v.c = 3 v.d = 4 } for (let i = 0; i < 100000; i++) { hello({}) }