55 lines
1.3 KiB
JavaScript
55 lines
1.3 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* eslint-disable no-new-func */
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'use strict';
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// VARIABLES //
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var scope;
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// FUNCTIONS //
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/**
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* Test if the global scope is bound to the "window" variable present in browser environments. When creating a new function using the `Function(){}` constructor, the execution scope aliased by the `this` variable is the global scope.
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*
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* @private
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* @returns {boolean} boolean indicating if global scope is bound to "window" variable
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*/
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function globalScope() {
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var fcn = '';
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fcn += 'try {';
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fcn += 'return this === window;';
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fcn += '} catch ( err ) {';
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fcn += 'return false;';
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fcn += '}';
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return (new Function( fcn ))();
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}
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// MAIN //
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scope = globalScope();
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// EXPORTS //
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module.exports = scope;
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