Run results for: desctruct vs property assign for 1000 items

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser: Chrome 106

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
destruct	175.3 Ops/sec
property assign	426.0 Ops/sec

Script Preparation code:

var obj = {};
var count = 1000;

for(var i = 0; i < 20; i++)
{
  obj[i] = {};
}

Tests:

destruct
for (var i = 0; i < count; i++) { Object.entries(obj).reduce((acc, [key, value]) => ({ ...acc, [key]: value }), {}) }
property assign
for (var i = 0; i < count; i++) { Object.entries(obj).reduce((acc, [key, value]) => { acc[key] = value; return acc; }, {}) }