how to remove previous class and add new class in jquery?

Question

I am storing my primary key as Classname everytime this function called i will have new primary key key, ``` function OnBtnShowPopupClick(elementID) { ASPxClientPopupControl1.ShowAtElementByID(elementID); $("#hiddenTag").addClass(elementID); } ``` what i want is to remove previous classname and add new className how?

Accepted Answer

Have you looked at removeClass

i.e

```
$("#hiddenTag").removeClass('someclass').addClass(elementID);
```

And if you don't know the class name:

```
$("#hiddenTag").removeAttr('class').addClass(elementID);
```

how to remove previous class and add new class in jquery?

Solution

Problem