/**
 * 获取cookie
 * @param name
 * @returns {string|null}
 */
 function getCookie(name) {
  var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
  if (arr = document.cookie.match(reg))
    return (arr[2]);
  else
    return null;
}

/**
 * 设置cookie
 * @param c_name
 * @param value
 * @param expiredays
 */
function setCookie (c_name, value, expiredays) {
  var exdate = new Date();
  exdate.setDate(exdate.getDate() + expiredays);
  document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
};

/**
 * 删除cookie
 * @param name
 */
function delCookie (name) {
  var exp = new Date();
  exp.setTime(exp.getTime() - 1);
  var cval = getCookie(name);
  if (cval != null)
    document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
};
export default {
  getCookie : getCookie,
  setCookie : setCookie,
  delCookie : delCookie
}