Run results for: set.has vs. array.includes (1 million entries)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36 OPR/102.0.0.0

Browser: Opera 102

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
array.includes	15720540.0 Ops/sec
set.has	15684142.0 Ops/sec

Script Preparation code:

var a = [];
for(let i = 0; i < 1000000; i++) {
  a.push(i);
}
var b = new Set(a)

AخA
 
var a = [];for(let i = 0; i < 1000000; i++) {  a.push(i);}var b = new Set(a)

Tests: