Problems to concatenate two text fields (one field is blank)

Hi everyone,

I'm having problems to concatenate two text fields.

I found one way to concatenate the two text fields (this.rawValue = line1.value +  " " + line2.value;), but it doesn't work if the 2snf field I am trying to combine is blank.

The only way they seems to work is if I setup 2 invisible fields at the top of my form (1 for line1 and another one for line2) and then use the below line of code:

if(xfa.record.line2.value != null){

                this.rawValue = xfa.record.line1.value;

} else {

                this.rawValue = xfa.record.line1.value +  " " + xfa.record.line2.value;;

}

As I am new to LiveCycle and my knowledge of javascript is quite limited, I was wondering if someone could advise if there is a better way to do it.

What am I missing?

thanks