get cookie method

getCookie.js

/**
 * Get a cookie by cookie name
 * @param {String} cname Name of the cookie
 */
export const getCookie = (cname) => {
  const name = `${cname}=`
  const decodedCookie = decodeURIComponent(document.cookie)
  const ca = decodedCookie.split(';')

  for(var i = 0; i < ca.length; i++) {
    var c = ca[i]

    while (c.charAt(0) === ' ') {
      c = c.substring(1)
    }
    if (c.indexOf(name) === 0) {
      return c.substring(name.length, c.length)
    }
  }

  return ''
}