October 2018
Intermediate to advanced
370 pages
9h 15m
English
Content preview from Hands-On Object-Oriented Programming with Kotlin
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The When expression
Kotlin provides an alternative method to the if statement—the When expression. When can also be perceived as a filter method. This is similar in nature to the Switch statement in Java or C. When sequentially matches its arguments with all branches until a condition is satisfied for a branch.
The When expression works as follows:
- When can use arbitrary expressions and constants.
- It takes the variable in the expression and matches the value within the branches.
- If the condition for the variable is a match, the relevant code block of the branch will execute. If none of the other branch conditions are satisfied, the else branch is evaluated.
Writing the When statement:
- The When statement is followed by the expression defined ...
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