get cookie from browser if its exists

getCookie.js

/**
 *
 * @param name {string}
 * @returns    {string | false}
 */
function getCookie (name) {
  const selectedCookie = document.cookie
    .split(COOKIE_SEPARATOR)
    .find(cookie => {
      const { name: cookieName } = splitCookie(cookie)

      return cookieName === name
    })

  return selectedCookie
    ? splitCookie(selectedCookie).value
    : false
}