Run results for: Float string optimization: parseFloat() vs regex

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 OPR/107.0.0.0 (Edition std-1)

Browser: Opera 107

Operating system: Windows

Device Platform: Desktop

Date tested: 2 months ago

Test name	Executions per second
parseFloat()	6294064.0 Ops/sec
regex	9332878.0 Ops/sec

Tests:

parseFloat()
var string = parseFloat((3/2).toFixed(4)).toString();
regex
var string = (3/2).toFixed(4).replace(/\.?0*$/, '');

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?

parseFloat()

regex