Run results for: Object.assign vs spread operator perf

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36

Browser: Chrome 75

Operating system: Mac OS X 10.14.5

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Object.assign	6002757.5 Ops/sec
spread operator	36911244.0 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 };