Ng-click to pass the value fails

Hi
I try using ng-click to transfer the value from items to URL, it doesn’t work at all, please help me.
I do:
ng-init="eiddata='{{itemValue(config.cm)}}'
<div>{{eiddata}}</div>
displays not a value but as a text {{itemValue(config.cm)}}
what am i doing wrong?

I’m a fool) everything turned out when I removed the brackets.