Forum Discussion
Variable change when user upates an answer?
I'm trying to build a course to help our users count money. I've done all the coding and all the math so everything works EXCEPT if they make a mistake and change a number to correct it. Then it adds...
As you've discovered, you have to be very careful about when you perform math operations on a number variable.
There's a simple solution to your problem: reset the Total, and then add all of the variables every time the user edits one of the "How many..." fields.
And a simple way to do that: Every time one of those variables changes, show a "counting" layer. Don't put any objects on that layer. Just do the math, and close it.
This is shown in an edited version of your slide in the attached file.
FYI: Here's more info about using invisible layers: TIP: the Incredible Power of Invisible Layers | Articulate - Community
As you've discovered, you have to be very careful about when you perform math operations on a number variable.
There's a simple solution to your problem: reset the Total, and then add all of the variables every time the user edits one of the "How many..." fields.
And a simple way to do that: Every time one of those variables changes, show a "counting" layer. Don't put any objects on that layer. Just do the math, and close it.
This is shown in an edited version of your slide in the attached file.
FYI: Here's more info about using invisible layers: TIP: the Incredible Power of Invisible Layers | Articulate - Community
And, yes, the counting could have used the Count1s value instead of bothering to put it into the 1stotal value. I just like using similar variable names for a given task. 😁
