Run results for: set includes vs array includes vs or, for two values

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0

Browser: Firefox 132

Operating system: Windows

Device Platform: Desktop

Date tested: 3 days ago

Test name	Executions per second
Array 1	295.7 Ops/sec
Array 2	305.6 Ops/sec
Array 3	282.1 Ops/sec
if 1	1280.4 Ops/sec
if 2	1309.9 Ops/sec
if 3	1083.5 Ops/sec
Set 1	849.8 Ops/sec
Set 2	1115.1 Ops/sec
Set 3	1039.7 Ops/sec
Inline Set 1	13.8 Ops/sec
Inline set 2	14.2 Ops/sec
Inline set 3	13.8 Ops/sec
Inline const set 1	14.1 Ops/sec
Inline const set 2	14.1 Ops/sec
Inline const set 3	9.7 Ops/sec

Script Preparation code:

const valueArray = [1, 2];
const valueSet = new Set([1, 2]);
const a = 1;
const b = 2;
const c = 3;

Tests:

Array 1
function array1() { valueArray.includes(1); } for (var i = 0; i < 1e5; ++i) { array1(); }
Array 2
function array2() { valueArray.includes(2); } for (var i = 0; i < 1e5; ++i) { array2(); }
Array 3
function array3() { valueArray.includes(3); } for (var i = 0; i < 1e5; ++i) { array3(); }
if 1
function if1() { if (a === a || a === b) {} } for (var i = 0; i < 1e5; ++i) { if1(); }
if 2
function if2() { if (b === a || b === b) {} } for (var i = 0; i < 1e5; ++i) { if2(); }
if 3
function if3() { if (c === a || c === b) {} } for (var i = 0; i < 1e5; ++i) { if3(); }
Set 1
function set1() { valueSet.has(1); } for (var i = 0; i < 1e5; ++i) { set1(); }
Set 2
function set2() { valueSet.has(2); } for (var i = 0; i < 1e5; ++i) { set2(); }
Set 3
function set3() { valueSet.has(1); } for (var i = 0; i < 1e5; ++i) { set3(); }
Inline Set 1
function inlineSet1() { new Set([1, 2]).has(1); } for (var i = 0; i < 1e5; ++i) { inlineSet1(); }
Inline set 2
function inlineSet2() { new Set([1, 2]).has(2); } for (var i = 0; i < 1e5; ++i) { inlineSet2(); }
Inline set 3
function inlineSet3() { new Set([1, 2]).has(3); } for (var i = 0; i < 1e5; ++i) { inlineSet3(); }
Inline const set 1
function inlineConstSet1() { const inlineValueConstSet1 = new Set([1, 2]); inlineValueConstSet1.has(1); } for (var i = 0; i < 1e5; ++i) { inlineConstSet1(); }
Inline const set 2
function inlineConstSet2() { const inlineValueConstSet2 = new Set([1, 2]); inlineValueConstSet2.has(2); } for (var i = 0; i < 1e5; ++i) { inlineConstSet2(); }
Inline const set 3
function inlineConstSet3() { const inlineValueConstSet3 = new Set([1, 2]); inlineValueConstSet3.has(3); } for (var i = 0; i < 1e5; ++i) { inlineConstSet3(); }

Run results for: set includes vs array includes vs or, for two values

Array 1

Array 2

Array 3

if 1

if 2

if 3

Set 1

Set 2

Set 3

Inline Set 1

Inline set 2

Inline set 3

Inline const set 1

Inline const set 2

Inline const set 3