Run results for: object vs set.has vs. array.includes on strings

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser: Chrome 107

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
includes	14453910.0 Ops/sec
lookup	14400220.0 Ops/sec
object	14879690.0 Ops/sec

Script Preparation code:

var a = ["x", "y", "width", "height", "showTrend", "showLabel", "somePropertyWithExtremelyLongName", "originX", "originY", "name"];
var b = new Set(a);
var c = {
  "x": true,
  "y": true,
  "width": true,
  "height": true,
  "showTrend": true,
  "showLabel": true,
  "somePropertyWithExtremelyLongName": true,
  "originX": true,
  "originY": true,
  "name": true
}

Tests:

includes
return a.includes("somePropertyWithExtremelyLongName")
lookup
return b.has("somePropertyWithExtremelyLongName")
object
return c["somePropertyWithExtremelyLongName"]

Run results for: object vs set.has vs. array.includes on strings

includes

lookup

object