Run results for: parseInt vs Number addition

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/121.0.6167.138 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 121

Operating system: iOS 17.3

Device Platform: Mobile

Date tested: 2 years ago

No conversion

12.3M/s

parseInt

5.5M/s

Number

4.4M/s

View exact numbers

Test name	Executions per second
✓ No conversion	12,321,893 Ops/sec
parseInt	5,548,714 Ops/sec
Number	4,414,747 Ops/sec

Script Preparation code:

var intA = 42.034;
var strB = "42.034";

Tests:

No conversion
var res = intA + strB;
parseInt
var res = parseInt(intA) + parseInt(strB);
Number
var res = Number(intA) + Number(strB);