Level Up Your Backend Development Skills

Learn all the ways to add elements to lists in Kotlin, from single items to collections. Includes mutable vs immutable lists and best practices.

Learn the different ways to add values to a HashMap in Kotlin, including put(), plusAssign, and bracket notation. Complete with practical examples.

Discover how to effectively use Kotlin's sealed classes to create robust and type-safe code. Learn best practices, common use cases, and how to avoid typical pitfalls when working with sealed hierarchies.

Master Kotlin's also function for handling side effects and method chaining. Learn when and how to use it effectively with practical examples, best practices, and common pitfalls to avoid in your Kotlin applications.

Learn how to effectively use Kotlin's run function for computing values, grouping operations, and handling complex initialization logic. Master its unique characteristics and best practices with practical examples.