Join Values from Multiple Fields

It might be too much to ask, but does anyone know if it is possible to a fields value (using conditions) by concatenating something to its current value. Something like this:

Field 1: Dog

Field 2: Cat

Field 3: Mouse

I want to update Field 1 by using its current value and appending the value of Field 2 and Field 3 to it, yielding:

DogCatMouse

I've attempted it and get some bizarre results.

Repopulating a filed that is used in the same condition criteria will result in unpredictable data and text output will be repetitive, I would recommend using the form calculation widget and the outputting the concatenating values in its result textbox.

Add a calculation widget to your form

Select the Three fields to include in your calculation

Click on the numeric fields to change the input type to text

Now click on Show Advanced options

Test your form

You can clone a copy of the form, here is its URL : http://form.jotformpro.com/form/51244461674960

If you have any more questions feel free to ask.

Excellent - many thanks!