Run results for: Object.assign vs spread operator perf

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36

Browser: Chrome 69

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
Object.assign	4872953.5 Ops/sec
spread operator	2204411.5 Ops/sec

Tests:

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