Functions

Learn how to create and call user-designed functions in your Kotlin programs!

Key Concepts

Review core concepts you need to learn to master this subject

Functions

Function Arguments

Default Arguements

Named Arguments

Return Statement

Single Expression Functions

Function Literals

fun greet() {
  println("Hey there!")
}

fun main() {
  // Function call
  greet() // Prints: Hey there!
}

A function is a named, reusable block of code that can be called and executed throughout a program.

A function is declared with the fun keyword, a function name, parentheses containing (optional) arguments, as well as an (optional) return type.

To call/invoke a function, write the name of the function followed by parentheses.

Functions

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