I need the text in the function to save to a variable.  It will run through each of the child text and than attach to data.  I'm willing to switch stuff up/rewrite a different way, I just need to know a way of getting this done

1. $("#navigation").click(function(){
              
               var data;
   
   
2. 
                   $("#navigation ul span li").each(function(){
                   data =  data + $(this).find(':first').text()
                   })
   
   
   
3. alert(data)
   
4. })