Failure can be scary, but it’s an important part of programming. You can use failure to learn how to debug, find the limits of a program, or quickly see what not to do!

It’s Okay To Fail

In Verse, failure means something specific. It doesn’t always mean that something didn’t work. It’s a way to control what your program does.

Remember in Lesson 4 when you learned that you could write code to ask a yes or no question?

|  |  |
| --- | --- |
|  | var Tired: logic = false |
|  | var WhatToWatch: string = “nothing” |
|  |  |
|  | if (Tired?): |
|  | set WhatToWatch = “your eyelids” |
|  | else: |
|  | set WhatToWatch = “cartoons” |
|  |  |
|  | Print(“You should watch {WhatToWatch}”) |
|  |  |
|  | # You should watch cartoons |

var Tired: logic = false var WhatToWatch: string = “nothing” if (Tired?): set WhatToWatch = “your eyelids” else: set WhatToWatch = “cartoons” Print(“You should watch {WhatToWatch}”)

You should watch cartoons

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The code asking the question is written as a failable expression. In the example above, Tired? is a failable expression.