Run results for: Set vs Includes

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:55.0) Gecko/20100101 Firefox/55.0

Browser: Firefox 55

Operating system: Ubuntu

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
Array includes	2.0 Ops/sec
Set	409.8 Ops/sec

Tests:

Array includes
array = [] for (var i = 0; i <= 10000; i++) { array[i] = i } array2 = array.reverse().filter((e, i, a) => !(a.slice(i+1).includes(e))).reverse()
Set
array = [] for (var i = 0; i <= 10000; i++) { array[i] = i } array2 = Array.from(new Set(array))