Basics
Kotlin When
When Expressions
Kotlin when expressions replace switch with pattern matching.
Introduction to Kotlin When
The when expression in Kotlin is a powerful tool that replaces traditional switch statements found in other languages. It provides a more expressive and flexible way to handle multiple conditional branches.
Basic Syntax of When Expression
The basic syntax of a when expression involves using it as a statement or an expression. It evaluates a given value against several conditions and executes the corresponding block of code:
Using When as an Expression
The when expression can return a value, making it a versatile tool for assigning values based on conditions:
Complex Conditions in When
Kotlin's when can handle complex conditions, such as ranges, collections, and type checks. This allows for more concise and readable code:
Using When with Type Checks
The when expression can be used to perform type checks, which is particularly useful when working with mixed data types:
Conclusion
The when expression in Kotlin offers a clean and concise way to handle conditional logic, making your code more readable and maintainable. Its ability to evaluate complex conditions and return values enhances its utility beyond traditional switch statements.
