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