Run results for: date substract day

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser: Chrome 139

Operating system: Linux

Device Platform: Desktop

Date tested: 9 months ago

Test name	Executions per second
with new date	202536.7 Ops/sec
without new date	192450.7 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

Tests:

with new date
var dateGoodFormat = new Date("2030-09-19T00:00:00"); var v = new Date(dateGoodFormat.getFullYear(), dateGoodFormat.getMonth(), dateGoodFormat.getDate() - 1); console.log(v);
without new date
var dateGoodFormat = new Date("2030-09-19T00:00:00"); dateGoodFormat.setDate(dateGoodFormat.getDate() -1); var v = dateGoodFormat; console.log(v);

Run results for: date substract day

with new date

without new date