Run results for: Object.assign vs spread operator new object

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36

Browser: Chrome 70

Operating system: Mac OS X 10.14.1

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Object.assign	3289543.0 Ops/sec
spread operator	1863125.0 Ops/sec

Tests:

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