巧用a链接获取url的search和hash等（比字符串截取或正则要简单）

(function (window) {
    var url = 'https://www.itdashun.com?name=dashun#test';
    var aLink = window.document.createElement('a');
    aLink.href = url;
    console.log(aLink.search)
    console.log(aLink.hash)

})(window);

控制台输出:

?name=dashun #test