Run results for: Array.includes vs Set.has vas Map.has (string)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Array includes (first)	15018375.0 Ops/sec
Set has (first)	10967130.0 Ops/sec
Map has (first)	10872117.0 Ops/sec
Array includes (mid)	8886254.0 Ops/sec
Set has (mid)	14200633.0 Ops/sec
Map has (mid)	14100850.0 Ops/sec
Array includes (last)	6651759.0 Ops/sec
Set has (last)	14112494.0 Ops/sec
Map has (last)	14016691.0 Ops/sec

Script Preparation code:

const add = "0x5F9e5e051Ca77a6117171e068e4d2EEe00f1DDF5"
const len = 10
const arr = Array.apply(null, Array(len)).map(function(x, i) {
    return add + i.toString();
});

var firstElem = arr[0]
var midElem = arr[Math.floor(len/2)]
var lastElem = arr[len-1]
      
var a = arr;
var b = new Set(arr);
var c = new Map(arr.map(function(x) {
    return [x, x]
}));

Tests:

Array includes (first)
return a.includes(firstElem);
Set has (first)
return b.has(firstElem);
Map has (first)
return c.has(firstElem);
Array includes (mid)
return a.includes(midElem);
Set has (mid)
return b.has(midElem);
Map has (mid)
return c.has(midElem);
Array includes (last)
return a.includes(lastElem);
Set has (last)
return b.has(lastElem);
Map has (last)
return c.has(lastElem);

Run results for: Array.includes vs Set.has vas Map.has (string)

Array includes (first)

Set has (first)

Map has (first)

Array includes (mid)

Set has (mid)

Map has (mid)

Array includes (last)

Set has (last)

Map has (last)