Concat function to join names is not working

Users
1

concat function to join names is not working!

2

What is the expression you're testing? What is the output you expect to see, and what do you see instead?

3

I am attempting to do simple concat of names to create full name (first, middle and last names)

I used the following expression:

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concat(/data/* *name_of_the_child ,'',/data/ Middle_name_of_the_child ,'',/data/ last_name_of_the_child)

This expression is not getting through.

Thanks

Sai

4

Those property references look incorrect. I'd drag and drop the appropriate questions into the expression editor to make sure they are correct. The first property is
/data/* *name_of_the_child
Asterisks don't make sense in this context, it should be /data/name_of_the_child

5

concat(/data/name_of_the_child ,’’,/data/ Middle_name_of_the_child ,’’,/data/ last_name_of_the_child) function is not working

6

Have you tried dragging and dropping the questions rather than typing it out?

7

Yes I did drop them . Still am unable to fix the bug .

8

Maybe we're talking about different things. Here's what it looks like when I drag and drop questions:

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If I copy and paste that, it appears like this:
concat(#form/first_name, " ", #form/last_name)