Run results for: compare Object.assign vs spread operator

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 Edg/123.0.0.0

Browser: Chrome 123

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

spread operator

9.4M/s

Object.assign

3.7M/s

View exact numbers

Test name	Executions per second
✓ spread operator	9,398,957 Ops/sec
Object.assign	3,684,784 Ops/sec

Tests:

Object.assign
var params = { b:"hello", c: true, d:7 }; var newObj = { a: 2 }; var other = Object.assign({},newObj, params);
spread operator
var params = { b:"hello", c: true, d:7 }; var newObj = { a: 2 }; var other = { ...newObj, ...params };