Run results for: set has vs regex

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Browser: Chrome 144

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

in check

233.7M/s

set has

192.8M/s

regex

47.2M/s

hasOwnProperty

7.9M/s

View exact numbers

Test name	Executions per second
✓ in check	233,684,432 Ops/sec
set has	192,848,624 Ops/sec
regex	47,224,812 Ops/sec
hasOwnProperty	7,907,017 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

let str = `qwertyuiopasdfghjklzxcvbnm`.split('')
let set = new Set(str)
let regex = RegExp(str.join('|'))
let obj = Object.fromEntries(str.map(o=>[str,str]))
let hop = hasOwnProperty.bind(obj)

Tests:

set has
set.has('1') set.has('m')
regex
regex.test('1') regex.test('m')
in check
1 in obj 'm'in obj
hasOwnProperty
hop(obj, 1) hop(obj, 'm')