Run results for: set.has vs. array.includes vs array.indexOf (numeric values)

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0

Browser: Firefox 78

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
includes	19792370.0 Ops/sec
lookup	5697325.0 Ops/sec
indexof	26699880.0 Ops/sec

Script Preparation code:

var a = [
  8123075259360718,
  2180349503224798,
  6686356311324193,
  362184468266422,
  2306757200330954,
  4532178674851796,
  8970950942018765
];
var b = new Set(a)

Tests:

includes
return a.includes(8123075259360718) ^ a.includes(7516472072139877) ^ a.includes(362184468266422);
lookup
return b.has(8123075259360718) ^ b.has(7516472072139877) ^ b.has(362184468266422);
indexof
return (a.indexOf(8123075259360718) > -1) ^ (a.indexOf(7516472072139877) > -1) ^ (a.indexOf(362184468266422) > -1);

Run results for: set.has vs. array.includes vs array.indexOf (numeric values)

includes

lookup

indexof