Run results for: set.has vs. array.includes vs array.indexOf (small set of number values)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Browser: Chrome 118

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var a = [
  9,
  2,
  5,
  6,
];
var b = new Set(a)

AخA
 
var a = [  9,  2,  5,  6,];var b = new Set(a)

Tests: