Kotlin Higher-Order Functions

What is a Higher-Order Function?

A higher-order function takes or returns another function.

Basic Example

Passing a Lambda

Returning a Function

Using with Collections

Custom Higher-Order Function

Full Example

Why Higher-Order Functions are Important

• Flexible and reusable code
• Reduce duplication
• Enable functional programming
• Used in modern Kotlin APIs

Common Mistakes

• Incorrect function type syntax
• Forgetting lambda parameters
• Overcomplicating logic

Practice

Create a function that takes a lambda and applies it.

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