Run results for: object.assign vs spread operator for shallow copying large objects 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36

Browser: Chrome 97

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
var copy={...a}	213178.2 Ops/sec
var copy = Object.assign({}, a)	287.1 Ops/sec

Script Preparation code:

var a={};
var i=10000;
while(i--)a[i]=i;

Tests: