Run results for: Comparing and Filtering two arrays, using the set.has vs. array.includes vs array.indexOf

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:78.0) Gecko/20100101 Firefox/78.0

Browser: Firefox 78

Operating system: Mac OS X 10.11

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var a = Array.from({ length: 1000 }, (_, v) => v);
var temp = [400, 600, 700, 800];
var b = new Set(a)

Tests: