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src/utils/node.js

/*
 * BSD 3-Clause License
 *
 * Copyright (c) 2018, MapCreator
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 *  Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 *  Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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/**
 * Test if the application is running under nodejs
 * @returns {boolean} - Is the application running under node?
 * @see https://nodejs.org
 * @private
 */
export function isNode () {
  try {
    return Object.prototype.toString.call(typeof process === 'undefined' ? 0 : process) === '[object process]';
  } catch (_) {
    return false;
  }
}

/**
 * Quickly check if the window contains a variable
 * @param {string} str - target variable
 * @returns {boolean} - If the window contains the variable
 * @private
 */
export function windowTest (str) {
  return typeof window !== 'undefined' && typeof window[str] !== 'undefined';
}