How to get caller EmailID with the help of GlideRecord and dot walking in incident table?

[Tejas16]

I want to get a caller Email ID using server side script?

I tried 

var inc=new GlideRecord('incident');

var a=current.caller_id.email;

gs.addInfoMessage(a);

But it stores undefined value in variable 'a'.

[Mike_R · Accepted solution]

how are you running this? Business rule? Also that first line in unnecessary 

[barolapriya]

var em=current.caller_id.email();

this will highly likely solve the issue.

to give you a brief we are pointing to current callers id and using that further point to email property of the caller .

Please mark this helpful if it seems fit to you , Tejas.