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Run results for:
TypedArray fill vs instantiation
Is a reset by fill() that much slower than instantiating a new TypedArray, that frequent re-allocations is preferred?
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<iframe src="https://measurethat.net/Embed?id=579234" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Instantiate
1774897.2 Ops/sec
Zero fill
25083094.0 Ops/sec
Script Preparation code:
let arr = new Float32Array(1000);
Tests:
Instantiate
arr = new Float32Array(1000);
Zero fill
arr.fill(0);