Run results for: set.has vs. array.includes various array sizes

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser: Chrome 112

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
includes10k	1962611.6 Ops/sec
lookup10k	12311406.0 Ops/sec
includes1k	9130438.0 Ops/sec
lookup1k	11718799.0 Ops/sec

Script Preparation code:

var a10k = new Array(10000).fill(undefined).map((x,i) => i);
var b10k = new Set(a10k)
var a1k = new Array(1000).fill(undefined).map((x,i) => i);
var b1k = new Set(a1k);
var c = Math.floor(Math.random()*10000);
var d = Math.floor(Math.random()*1000);

Tests:

includes10k
return a10k.includes(c)
lookup10k
return b10k.has(c)
includes1k
return a1k.includes(d)
lookup1k
return b1k.has(d)

Run results for: set.has vs. array.includes various array sizes

includes10k

lookup10k

includes1k

lookup1k