Run results for: Object Assign vs Manual Assign

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0

Browser: Firefox 83

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Object Assign	38.3 Ops/sec
Manual Assign	496.7 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({}) }