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Recipes

Recipes

qdx leaves out several things other languages give you, and asks you to build them from what it has. These pages show the usual way to do each one. Every program on them is complete and can be run as shown.

A list of your own
Declare a list for any type, and walk, change and reverse it.
A value that may be missing
What to return when there may be nothing to return.
More than one result
Hand back several values from one function.
Building text
Join pieces, numbers and lists into output.
Several files
Split a program up when every name is shared.
A program that checks itself
Write tests with nothing but the language.