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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15

Browser: Safari 13

Operating system: Mac OS X 10.15.4

Device Platform: Desktop

Date tested: 4 years ago

Script Preparation code:

var valueArray = [1, 2]; 
var valueSet = new Set([1, 2]);

Tests:

array (first case)
for (var i = 0; i < 1e7; ++i) { valueArray.includes(1); }
array (second case)
for (var i = 0; i < 1e7; ++i) { valueArray.includes(2); }
Set (first case)
for (var i = 0; i < 1e7; ++i) { valueSet.has(1); }
Set (second case)
for (var i = 0; i < 1e7; ++i) { valueSet.has(2); }
Set (no case)
for (var i = 0; i < 1e7; ++i) { valueArray.includes(3); }
array (no case)
for (var i = 0; i < 1e7; ++i) { valueSet.has(3); }