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Run results for:
Math.pow(x,0.5) vs Math.sqrt(x) vs (x ** 0.5) reduce sum
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<iframe src="https://measurethat.net/Embed?id=521781" 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/124.0.0.0 Safari/537.36
Browser:
Chrome 124
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
sqrt with ** 0.5
10K/s
sqrt with Math.pow
1K/s
Math.sqrt
1K/s
View exact numbers
Test name
Executions per second
✓
sqrt with ** 0.5
9,810 Ops/sec
sqrt with Math.pow
1,303 Ops/sec
Math.sqrt
1,259 Ops/sec
Script Preparation code:
var numbers = Array.from(Array(10000), (_,x) => (Math.random()*x));
Tests:
Math.sqrt
const sum = numbers.map(number => Math.sqrt(number)).reduce((a, b) => a + b, 0) console.log(sum)
sqrt with Math.pow
const sum = numbers.map(number => Math.pow(number, 0.5)).reduce((a, b) => a + b, 0) console.log(sum)
sqrt with ** 0.5
const sum = numbers.map(number => number ** 0.5).reduce((a, b) => a + b, 0) console.log(sum)