Run results for: Spread vs Assign Object Copy

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36 Edg/87.0.664.75

Browser: Chrome 87

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Spread	43123540.0 Ops/sec
Assign	3671838.0 Ops/sec

Tests:

Spread
const a = {mix1: "a", mix2: "b", mix3: { mox1: "a", mox2: "b" }}; const b = { ...a };
Assign
const a = {mix1: "a", mix2: "b", mix3: { mox1: "a", mox2: "b" }}; const b = Object.assign({}, a);