Dummu - Design Pattern in Kotlin

This shape keeps showing up in different codebases because the underlying problem keeps showing up too.

Why this matters for Kotlin

This is a bold claim, an italic aside, and an underlined point, all in one Kotlin example.

What it touches:

• The Kotlin runtime or interpreter
• Whatever calls the code around it
• Anyone reading this six months from now

How to apply it:

1. Read the snippet below once, slowly.
2. Try changing one value and predict the output before running it.
3. Compare your prediction against what actually happens.

"A pattern is only useful when it fits the problem. Forcing it where it does not fit adds ceremony for nothing."

fun double(n: Int) = n * 2

Reference: Kotlin documentation

A pattern is only useful when it fits the problem. Forcing it where it does not fit adds ceremony for nothing.