2min chapter

The Array Cast cover image

Fold and Other Functional Conjunctions

The Array Cast

CHAPTER

How to Define a Colon by Yourself

Z colon is kind of magic right you couldn't define this as you colon by yourself well it's not magic it takes a result so you you calculate a predicate that says either quit or not quit. When it's executed as a verb it's simply to produce the domain error rather than just affecting its own argument. You could use it to terminate the iteration but it would be really cumbersome to use itWell I could set a global stop value that the fold picks up and stops I guess,  I mean by its magic it's doing things that you can't do in the language like like cap right is also at primitive that you cannot define yourself.

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