Run results for: Map.has vs Set.has

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.106 Safari/537.36

Browser: Chrome 80

Operating system: Mac OS X 10.12.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Set	11798832.0 Ops/sec
Map	12378765.0 Ops/sec

Script Preparation code:

var list = [];
for (let i = 0; i < 1000; i++) {
  list.push(i);
}
var set = new Set(list);
var map = new Map();
list.forEach(item => map.set(item, true));

Tests:

Set
var found = set.has(450);
Map
var found = map.has(450)