2 var $ = require('../internals/export');
3 var $indexOf = require('../internals/array-includes').indexOf;
4 var arrayMethodIsStrict = require('../internals/array-method-is-strict');
6 var nativeIndexOf = [].indexOf;
8 var NEGATIVE_ZERO = !!nativeIndexOf && 1 / [1].indexOf(1, -0) < 0;
9 var STRICT_METHOD = arrayMethodIsStrict('indexOf');
11 // `Array.prototype.indexOf` method
12 // https://tc39.es/ecma262/#sec-array.prototype.indexof
13 $({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD }, {
14 indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
17 ? nativeIndexOf.apply(this, arguments) || 0
18 : $indexOf(this, searchElement, arguments.length > 1 ? arguments[1] : undefined);