This tutorial introduces the when{} block in Kotlin language and demonstrates the various ways that we can use it. To understand the material in this tutorial, we need basic knowledge of the Kotlin language. Have a look at the introduction to the Kotlin language article on Baeldung to learn ...
In this article, we’ve explored various approaches to resolving the warning, “Return can be lifted out of ‘when'” in Kotlin. We started by understanding the warning and its implications. First, we moved the return statement outside the when block. Next, we utilized the expression body ...
1.加密模块首先要添加引用 using Microsoft.Practices.EnterpriseLibrary.Security.Cryptography;2.创建配置文件 通过Enterprise Library Configuration工具打开app.config文件,如图 创建Cryptography Application Block节。系统会自动添加两个子节。Hash P...猜你喜欢内外...
Kotlin when with block of codeKotlin when braches can be put as block of code enclosed within curly braces.ExampleOpen Compiler fun main(args: Array<String>) { val day = 2 when (day) { 1 -> { println("First day of the week") println("Monday") } 2 -> { println("Second day of...
If there is a match, the associated block of code is executedelse is used to specify some code to run if there is no matchIn the example above, the value of day is 4, meaning "Thursday" will be printed❮ Previous Next ❯
Super short post, on a change introduced in Kotlin 1.3 (yes I know it has been out for a while now). We will take a quick look at capturing the subject of awhenblock into a scoped variable. This is a quality of life improvement that saves a line or so of code while making the ...
filter }?.invoke() ?: return } class Tester<T: Comparable<T>>(val it: T) { val filterList = mutableListOf<Filter>() class Filter(val filter: Boolean, val block: () -> Unit) { operator fun invoke() = block() //就是把operator invoke重载掉,直接执行block这个用户输入的函数 } //...
kotlin 密封类[closed]的When-Expression中的非穷举错误您发布的代码编译时没有错误。你可能有另一个...
Kotlin when expression is used when you have to match the value of an expression to a set of values and execute a block of statement corresponding to the matched value. In this tutorial, we will learn the syntax of Kotlin When expression, with examples d
Since all enum cases RED, GREEN, and BLUE are covered within the when() block, there’s no need for an else() clause. This showcases the ability of when() expressions to be exhaustive without requiring additional fallback logic when all possible cases are handled. 4. Sealed Classes and ...