How to get route parameter in JavaScript?

Question

I have a ASP.NET website that is URL-Rewriting enabled. I know how to get route parameters using C#: ``` Page.RouteData.Values["id"] as string; ``` But I don't know how to get it from javascript? Following is my rewritten link format: http://www.domain.com/topic/{id}/{title} I want to get this {id} field using JavaScript. Please help! UPDATE I have this code that gets request parameter. ``` function getParameterByName(name) { name = name.replace(/[$$]/, "\\[").replace(/[$$]/, "\\]"); var regex = new RegExp("[\?&]" + name + "=([^&#]*)"), results = regex.exec(location.search); return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " ")); } ``` How can this be modified to get route parameter?

Accepted Answer

```
function getValueAtIndex(index){
    var str = "http://www.sample.com/234/Fiddle/test"; //window.location.href; 
    return str.split("/")[index];
}
console.log(getValueAtIndex(3));
```

Update

Here's a much cleaner way of getting value at an index in the route using plain JS:

```
    location.pathname.split('/')[index]
    
```

For example, for the current page,

```
location.pathname = '/questions/20302776/how-to-get-route-parameter'
```

You can get the question id by doing:

```
location.pathname.split('/')[2]

// Notice that the index does not start from zero.
```

How to get route parameter in JavaScript?

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