'use strict';
/* eslint-disable es/no-array-prototype-indexof -- required for testing */
var $ = require('../internals/export');
var uncurryThis = require('../internals/function-uncurry-this');
var $IndexOf = require('../internals/array-includes').indexOf;
var arrayMethodIsStrict = require('../internals/array-method-is-strict');

var un$IndexOf = uncurryThis([].indexOf);

var NEGATIVE_ZERO = !!un$IndexOf && 1 / un$IndexOf([1], 1, -0) < 0;
var STRICT_METHOD = arrayMethodIsStrict('indexOf');

// `Array.prototype.indexOf` method
// https://tc39.es/ecma262/#sec-array.prototype.indexof
$({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD }, {
  indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
    var fromIndex = arguments.length > 1 ? arguments[1] : undefined;
    return NEGATIVE_ZERO
      // convert -0 to +0
      ? un$IndexOf(this, searchElement, fromIndex) || 0
      : $IndexOf(this, searchElement, fromIndex);
  }
});