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Run results for:
Float string optimization: parseFloat() vs regex
To get a cleaned-up float number with a limited number of digits of precision, which is faster: parsefloat() or a regular expression?
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<iframe src="https://measurethat.net/Embed?id=559103" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0
Browser:
Firefox 131
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
parseFloat()
13.8M/s
regex
9.0M/s
View exact numbers
Test name
Executions per second
✓
parseFloat()
13,819,409 Ops/sec
regex
8,997,773 Ops/sec
Tests:
parseFloat()
var string = parseFloat((3/2).toFixed(4)).toString();
regex
var string = (3/2).toFixed(4).replace(/\.?0*$/, '');