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Filename : utils.js
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const hasBrowserEnv = typeof window !== 'undefined' && typeof document !== 'undefined';

const _navigator = typeof navigator === 'object' && navigator || undefined;

/**
 * Determine if we're running in a standard browser environment
 *
 * This allows axios to run in a web worker, and react-native.
 * Both environments support XMLHttpRequest, but not fully standard globals.
 *
 * web workers:
 *  typeof window -> undefined
 *  typeof document -> undefined
 *
 * react-native:
 *  navigator.product -> 'ReactNative'
 * nativescript
 *  navigator.product -> 'NativeScript' or 'NS'
 *
 * @returns {boolean}
 */
const hasStandardBrowserEnv = hasBrowserEnv &&
  (!_navigator || ['ReactNative', 'NativeScript', 'NS'].indexOf(_navigator.product) < 0);

/**
 * Determine if we're running in a standard browser webWorker environment
 *
 * Although the `isStandardBrowserEnv` method indicates that
 * `allows axios to run in a web worker`, the WebWorker will still be
 * filtered out due to its judgment standard
 * `typeof window !== 'undefined' && typeof document !== 'undefined'`.
 * This leads to a problem when axios post `FormData` in webWorker
 */
const hasStandardBrowserWebWorkerEnv = (() => {
  return (
    typeof WorkerGlobalScope !== 'undefined' &&
    // eslint-disable-next-line no-undef
    self instanceof WorkerGlobalScope &&
    typeof self.importScripts === 'function'
  );
})();

const origin = hasBrowserEnv && window.location.href || 'http://localhost';

export {
  hasBrowserEnv,
  hasStandardBrowserWebWorkerEnv,
  hasStandardBrowserEnv,
  _navigator as navigator,
  origin
}