Run results for: set.has vs. array.includes v2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0

Browser: Firefox 104

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
includes	4099387.2 Ops/sec
lookup	24715324.0 Ops/sec

Script Preparation code:

var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var b = new Set(a)

AخA
 
var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];var b = new Set(a)

Tests:

let res = 0;

for (let i = 0; i < 10; i++) {
  res = a.includes(i) ? i : res;
}

return res;

​x
 
let res = 0;​for (let i = 0; i < 10; i++) {  res = a.includes(i) ? i : res;}​return res;

let res = 0;

for (let i = 0; i < 10; i++) {
  res = b.has(i) ? i : res;
}

return res;

 
let res = 0;​for (let i = 0; i < 10; i++) {  res = b.has(i) ? i : res;}​return res;