[Javascript] deleting all options

[Michael Borchers]

>> i dynamically fill a <select> with options depending on an ID given by
>> another <select>.
>> when i do it twice the first created options still are in the new select.
>>
>> now i need ans easy function to clear the <select> of all its options.
>>
>> do i have to count through every option of that select or is there a
>> faster way?
>
> Assuming your select has an id, as in
> <select id="mySelect">
> you can use
>
> // get reference to element
> var element = document.getElementById("mySelect");
> // remove all children of element
> while (element.firstChild) {
>   element.removeChild(element.firstChild);
> }
>
> As you presumably already have a variable reference to the select, adjust
> accordingly.
>
> The while loop there is a general purpose way of removing all the child
> nodes of any element, so depending on your needs, you may find it useful
> to move it into a function.

GREAT! definetely better than counting every option out:) thanks!