benchmark for Array#includes and Array#indexOf

includes-vs-indexOf.js

var Benchmark = require('benchmark');
var suite = new Benchmark.Suite;
var items = [
  "jpg", "3fr",
  "ari", "arw",
  "bay",
  "crw", "cr2",
  "cap",
  "data", "dcs", "dcr", "dng",
  "drf",
  "eip", "erf",
  "fff",
  "iiq",
  "k25", "kdc",
  "mdc", "mef", "mos", "mrw",
  "nef", "nrw",
  "obm", "orf",
  "pef", "ptx", "pxn",
  "r3d", "raf", "raw", "rwl", "rw2", "rwz",
  "sr2", "srf", "srw",
  "tif",
  "x3f"
];

suite
  .add('Array#indexOf', function () {
    items.indexOf('raf') !== -1
  })
  .add('Array#includes', function () {
    items.includes('raf')
  })
  .on('cycle', function (event) {
    console.log(String(event.target));
  })
  .on('complete', function () {
    console.log('Fastest is ' + this.filter('fastest').map('name'));
  })
  .run({ 'async': true });