如何使用jQuery从URL获取锚点？

Question

I have a URL that is like:

www.example.com/task1/1.3.html#a_1

How can I get the a_1 anchor value using jQuery and store it as a variable?

Answer 1

For current window , you can use this:

var hash = window.location.hash.substr(1);

To get the hash value of the main window , use this:

var hash = window.top.location.hash.substr(1);

If you have a string with an URL/hash, the easiest method is:

var url = 'https://www.stackoverflow.com/questions/123/abc#10076097';
var hash = url.split('#').pop();

If you're using jQuery, use this:

var hash = $(location).attr('hash');

Answer 2

You can use the .indexOf() and .substring() , like this:

var url = "www.aaa.com/task1/1.3.html#a_1";
var hash = url.substring(url.indexOf("#")+1);

You can give it a try here , if it may not have a # in it, do an if(url.indexOf("#") != -1) check like this:

var url = "www.aaa.com/task1/1.3.html#a_1", idx = url.indexOf("#");
var hash = idx != -1 ? url.substring(idx+1) : "";

---

If this is the current page URL, you can just use window.location.hash to get it, and replace the # if you wish.

Answer 3

Use

window.location.hash

to retrieve everything beyond and including the #

Answer 4

jQuery风格：

$(location).attr('hash');

Answer 5

You can use the following "trick" to parse any valid URL. It takes advantage of the anchor element 's special href-related property, hash .

With jQuery

function getHashFromUrl(url){
    return $("<a />").attr("href", url)[0].hash.replace(/^#/, "");
}
getHashFromUrl("www.example.com/task1/1.3.html#a_1"); // a_1

With plain JS

function getHashFromUrl(url){
    var a = document.createElement("a");
    a.href = url;
    return a.hash.replace(/^#/, "");
};
getHashFromUrl("www.example.com/task1/1.3.html#a_1"); // a_1

Answer 6

If you just have a plain url string (and therefore don't have a hash attribute) you can also use a regular expression:

var url = "www.example.com/task1/1.3.html#a_1"  
var anchor = url.match(/#(.*)/)[1]