Q:

ERB doesnt get executed in javascript scripts

I have a select input on my page. this select input displays/hides fields in the form. This all works fine. But the problem is that if i submit the form and lack some necessary fields, it doesnt set the select to the right value afterwards. I just cant get the embedded ruby to work! it keeps escaping the whole thing... here my code:
$(document).ready(function() {
$("#profile_sex").val('<%= @profile.sex %>')
   $("#profile_sex").change(function(){

    ($(this).val() == "Frau") ? $('#form-female').show() : $('#form-female').hide();
    ($(this).val() == "Mann") ? $('#form-male').show() : $('#form-male').hide();
    if ($(this).val() == "Paar") {
        $('#form-female').show(); 
        $('#form-male').show();
    }       
  });

});

why doesnt this work???
I dont get any error or anything it just sets the value to "<%= @profile.sex =>"
I was googling and searching about on stack overflow and railscasts, the rails API, everything. Im seriously confused...
thanks for your help.

A:

Try removing the tick marks around '<%= @profile.sex %>'.
If you need the tick marks around your value, try ' + <%= @profile.sex %> + '

