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							- 'use strict';
 
- var fails = require('../internals/fails');
 
- var wellKnownSymbol = require('../internals/well-known-symbol');
 
- var V8_VERSION = require('../internals/engine-v8-version');
 
- var SPECIES = wellKnownSymbol('species');
 
- module.exports = function (METHOD_NAME) {
 
-   // We can't use this feature detection in V8 since it causes
 
-   // deoptimization and serious performance degradation
 
-   // https://github.com/zloirock/core-js/issues/677
 
-   return V8_VERSION >= 51 || !fails(function () {
 
-     var array = [];
 
-     var constructor = array.constructor = {};
 
-     constructor[SPECIES] = function () {
 
-       return { foo: 1 };
 
-     };
 
-     return array[METHOD_NAME](Boolean).foo !== 1;
 
-   });
 
- };
 
 
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