Cookie操作

时不时会取Cookie，目前还没遇到需要用其他方式操作Cookie的地方，总结一下cookie操作实现

Cookie操作实现

export const docCookies = {
  getItem: function (sKey: string) {
    return decodeURIComponent(document.cookie.replace(new RegExp('(?:(?:^|.*;)\\s*' + encodeURIComponent(sKey).replace(/[-.+*]/g, '\\$&') + '\\s*\\=\\s*([^;]*).*$)|^.*$'), '$1')) || null
  },
  hasItem: function (sKey: string) {
    return (new RegExp('(?:^|;\\s*)' + encodeURIComponent(sKey).replace(/[-.+*]/g, '\\$&') + '\\s*\\=')).test(document.cookie)
  },
  keys: /* optional method: you can safely remove it! */ function () {
    var aKeys = document.cookie.replace(/((?:^|\s*;)[^=]+)(?=;|$)|^\s*|\s*(?:=[^;]*)?(?:\1|$)/g, '').split(/\s*(?:=[^;]*)?;\s*/)
    for (var nIdx = 0; nIdx < aKeys.length; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]) }
    return aKeys
  },
}