Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.27 Safari/537.36
Chrome 96
Linux
Desktop
3 years ago
Test name Executions per second
includes 19585232.0 Ops/sec
lookup 2178414.8 Ops/sec
Script Preparation code:
x
 
var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
Tests:
  • includes

     
    return a.includes(9)
  • lookup

     
    var b = new Set(a)
    return b.has(9)