Functions

In the previous tutorial, we learned about control flow: if, for, while, and match/case. Now let’s learn about functions — reusable blocks of code. Functions are the foundation of clean code. They let you write a piece of logic once and use it many times. By the end of this tutorial, you will know how to define functions, use different parameter types, write lambda functions, and understand closures. Defining a Function Use the def keyword to create a function: ...

In the previous tutorial, you learned about null safety. Now let’s learn about functions — the building blocks that organize your code into reusable pieces. Kotlin functions are more powerful than Java methods. They support default parameters, named arguments, single-expression syntax, and much more. In this tutorial, you will learn: ...