About auto calculation while typing on the text box


how-to-insert-text-and-mathematical-calculationi-using-conditions-screencast1 I need to build like this coding? Need help


Try using this block:

From this extension:


Thanks for replying. Still I using that extension. when I type on text box, it is working. But if the text box is empty after backspacing it showing bad argument says empty string. See below coding.


Use an if statement:
If .text not = “” then
Do math


Thanks a lot.it resolved