Check for cookies in JS

areCookiesEnabled.js

export const areCookiesEnabled = () => {
  let cookieEnabled = !!navigator.cookieEnabled;

  if (typeof navigator.cookieEnabled === 'undefined' && !cookieEnabled) {
    document.cookie = 'testcookie';
    cookieEnabled = document.cookie.indexOf('testcookie') !== -1;
  }
  return cookieEnabled;
};