Run results for: Map read/write once vs twice (dcfsdfsdf)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Once	1250204.4 Ops/sec
Twice	907267.6 Ops/sec

Script Preparation code:

var keys = [1, 2, 3, 4];
var mapObject = {};
var mapTime = {};
var mapDate = {};

Tests:

Once
const date = Date.now(); keys.forEach((key, i) => { const time = i * 1000; mapObject[key] = {time, date}; }); keys.forEach((key) => { const {time, date} = mapObject[key]; mapObject[key].date = 1; mapObject[key].time = 2; });
Twice
const date = Date.now(); keys.forEach((key, i) => { const time = i * 1000; mapTime[key] = time; mapDate[key] = date; }); keys.forEach((key) => { const a = mapTime[key]; const b = mapDate[key]; mapTime[key] = 1; mapDate[key] = 2; });