Run results for: Object.assign vs spread operator

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.1.99; Build/PPP2.180412.013) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.82 Mobile Safari/537.36

Browser: Chrome Mobile 66

Operating system: Android 8.1.99

Device Platform: Other

Date tested: 6 years ago

Test name	Executions per second
Object.assign	672478.5 Ops/sec
spread operator	812948.3 Ops/sec
jQuery extend	540845.9 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 };
jQuery extend
var params = { b:"hello", c: true, d:7 }; var other = $.extend({ a: 2 }, params);

Run results for: Object.assign vs spread operator

Object.assign

spread operator

jQuery extend