Store findBy always returns -1

[testvogel]

Hi,

why is the findBy method always returning -1, which means no record could be found. I think I'm doing something wrong :/

code snippet:

var index = store.findBy(function(record,id){
   return true;
});

This should always return the index of the first element. What is the proper way of using the findBy method?

[testvogel]

Fixed it by myself. The 'store' variable was not properly initialized :/