Run results for: Array.from length vs for loop

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0

Browser: Firefox 142

Operating system: Linux

Device Platform: Desktop

Date tested: 11 months ago

for loop

126K/s

Array.from length

11K/s

View exact numbers

Test name	Executions per second
✓ for loop	126,102 Ops/sec
Array.from length	11,496 Ops/sec

HTML Preparation code:

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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:

Array.from length
Array.from({length: 10000}, (_, i)=>i)
for loop
for(var i=0;i<10000;i++) {}