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- 'use strict';
- var $export = require('./_export')
- , $indexOf = require('./_array-includes')(false)
- , $native = [].indexOf
- , NEGATIVE_ZERO = !!$native && 1 / [1].indexOf(1, -0) < 0;
- $export($export.P + $export.F * (NEGATIVE_ZERO || !require('./_strict-method')($native)), 'Array', {
- // 22.1.3.11 / 15.4.4.14 Array.prototype.indexOf(searchElement [, fromIndex])
- indexOf: function indexOf(searchElement /*, fromIndex = 0 */){
- return NEGATIVE_ZERO
- // convert -0 to +0
- ? $native.apply(this, arguments) || 0
- : $indexOf(this, searchElement, arguments[1]);
- }
- });
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