Run results for: isString vs

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

typeof

31.9M/s

object prototype

11.6M/s

View exact numbers

Test name	Executions per second
✓ typeof	31,891,918 Ops/sec
object prototype	11,638,947 Ops/sec

Script Preparation code:

var x = "123"

Tests:

object prototype
var y = Object.prototype.toString.call(x) === '[object String]'
typeof
var y = typeof x === "string"