| | |
| | | 'use strict'; |
| | | var $ = require('../internals/export'); |
| | | var $includes = require('../internals/array-includes').includes; |
| | | var fails = require('../internals/fails'); |
| | | var addToUnscopables = require('../internals/add-to-unscopables'); |
| | | |
| | | // FF99+ bug |
| | | var BROKEN_ON_SPARSE = fails(function () { |
| | | return !Array(1).includes(); |
| | | }); |
| | | |
| | | // `Array.prototype.includes` method |
| | | // https://tc39.es/ecma262/#sec-array.prototype.includes |
| | | $({ target: 'Array', proto: true }, { |
| | | $({ target: 'Array', proto: true, forced: BROKEN_ON_SPARSE }, { |
| | | includes: function includes(el /* , fromIndex = 0 */) { |
| | | return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined); |
| | | } |