Run results for: Spread vs Assing vs JSON - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36

Browser: Chrome 70

Operating system: Windows

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
JSON	784479.3 Ops/sec
Assign	4420584.5 Ops/sec
Spread	60389528.0 Ops/sec

Tests:

JSON
var obj = {a:'foo',b:'bar'}; var obj2 = JSON.parse(JSON.stringify(obj));
Assign
var obj = {a:'foo',b:'bar'}; var obj2 = Object.assign({}, obj);
Spread
var obj = {a:'foo',b:'bar'}; var obj2 = {...obj};