Auto-fill text into field if any data is entered in another

[Salmon Gram]

I am creating a form for work, and I would like to set it up so if someone fills out a certain field with any data at all, it will populate a set text into another field.  I have searched the forums for this, and have seem similar answers, but they are all based on varying data being entered and output.  I am just unsure of how I would set the field to accept any input as opposed to a set text.

For example, if I have fields A, B, and C, where A would be the field they would be entering text.  I would like it so regardless of what is entered into field A, fields B and C will populate with a set text.  So I could type "Hello" into A, and B would populate with "Hi", and C would populate with "Bye", but if I were to type "Adobe" (or any other text) into field A, the other two would still fill with "Hi" and "Bye".

[try67]

And if the A field is empty, do you want the user to be able to enter a value into B and C, or just have them as empty automatically?

[Salmon Gram]

They would always be empty until there is something entered into field A.

[try67 · Accepted solution]

OK. In that case you use this custom Calculation script for each of them:

event.value = this.getField("A").valueAsString=="" ? "" : "Hi";

event.value = this.getField("A").valueAsString=="" ? "" : "Bye";

[Salmon Gram]

This worked!  Thank you so much!!

[lynnt35156942]

Hello I have a similar situation,

Field A + Field B = Auto Populate Field A in Field C

if Field B is empty so would Field C

therefore I need Field B to trigger Field C.