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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser: Chrome 103

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Number(intString)	8409892.0 Ops/sec
+intString	901292224.0 Ops/sec
parseInt(intString)	8036231.0 Ops/sec
parseFloat(intString)	8150600.0 Ops/sec
Number(floatString)	8370384.0 Ops/sec
+floatString	901166080.0 Ops/sec
parseInt(floatString)	5941976.5 Ops/sec
parseFloat(floatString)	5959648.0 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")