Run results for: "isNumber" - isNaN vs + vs typeof

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

typeof

5.4M/s

isNaN

4.0M/s

3.8M/s

View exact numbers

Script Preparation code:

var k = "sadasljdaw";

Tests: