Example 1 In this example, Take a list of strings. This variable holds the specific item during that iteration. Syntax List.forEach (action) You can access each item in the forEach block, using variable name it. I came up with these general functions: fun forloop(state: S, condition: (s: S) -> Boolean, postExecution: (s: S) -> Unit, block: (s: S) -> Unit) ")Īlthough, in compliance with the language philosophy, you should only use this in rare circumstances. The Kotlin List.forEach () function performs the given action on each element of the list. However, I needed a traditional for loop (like java) with an immediately terminating state scope, exit condition that evaluates before loop-body execution, and a post-execution operation (my use case was complicated: I needed to repeat using a dynamic exit condition based on a compression routine and powers of 2). Aggregate operations in Kotlin are performed on collections of elements, such as arrays and lists, and return a single accumulated value based on the contents of the collection. The forEach function takes a lambda expression as its parameter. R ecently, there has been an increasing frequency of Kotlin usage, prompting me to do a simple reorganization of my Kotlin code in recent years. It simplifies the process of traversing through a collection and executing code for each element without the need for explicit loops. Kotlin is trying to enforce fluent iteration, which covers the vast majority of looping constructs. Kotlin's forEach is a higher-order function that allows you to iterate over elements in a collection and perform a specific action on each element.
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