Run results for: Number() vs Unary plus vs parseInt vs parseFloat - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36 Edg/122.0.0.0

Browser: Chrome 122

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Number(intString)	20652108.0 Ops/sec
+intString	301497728.0 Ops/sec
parseInt(intString)	20532782.0 Ops/sec
parseFloat(intString)	20020558.0 Ops/sec
Number(floatString)	20668078.0 Ops/sec
+floatString	310932736.0 Ops/sec
parseInt(floatString)	20330774.0 Ops/sec
parseFloat(floatString)	13724247.0 Ops/sec

Tests:

Number(intString)
Number("100")
+intString
+"100"
parseInt(intString)
parseInt("100")
parseFloat(intString)
parseFloat("100")
Number(floatString)
Number("25.0295")
+floatString
+"25.0295"
parseInt(floatString)
parseInt("25.0295")
parseFloat(floatString)
parseFloat("25.0295")