Copy values from variable into another variable

[William2]

Hello community, 

How can i copy values from variable A to variable B ?

Variable A = concat(field1, ',')

Trigger an action for second variable 

Variable B = Variable A

Variable B should Keep the values from when action was triggered, even if field1 selection changes after, what would also changes Variable A. 

I use this in frond end.

Any idea? 

Thanks 

[Thiago_Justen_]

Hi there

What about this?

 Result:

 Regards

[William2]

Hello Thiago, 

Thanks  for reply. 

You set vB as vA. Means this values are always equal. But I wanna set vB as vA when Button is clicked. After Button was clicked vA should not affect vB anymore even vA changes values. 

Regards Will