It is like an Function approach towards the traditional for-loop way.īoth For loops and ForEach are same when generating output from an array or listįorEach can be more useful if we use it more functional operators. This will also print the same output like before,Īs you can see that using forEach inplace to for loop make the code more concise and smart.įorEach are used to perfrom action on each and every elements of list The difference between them is the condition checking time: while checks the condition and, if its satisfied, executes the body and then returns to the condition check. Now, in Kotlin we can perform the same operation using ForEach forEach - Kotlin Programming Language Common JVM JS Native Version 1.8 kotlin-stdlib / llections / forEach forEach Common JVM JS Native 1. So, if we want to print all the item in the list using for loop, we will use Complete Data Science Program(Live) Mastering Data Analytics New Courses. Let's Consider an example, we want to print all the elements in a list Android App Development with Kotlin(Live) Python Backend Development with Django(Live) Machine Learning and Data Science. Prerequisites Familiarity with function types and lambda expressions. In the process, you'll get additional practice working with lambda expressions. But before that let's understand how for loop works. In this codelab, you'll learn about a variety of functions that can be used on collection types, including forEach (), map (), filter (), groupBy (), fold (), and sortedBy (). In this blog, we will talk about the ForEach function in Kotlin. We can also use while loops.įor loops are used to get each and evey elements of the Collection, List. Finally, the elements of the array are printed by using the forEach() loop. Have you ever have iterated through a list or an array in Kotlin or in any programming language ? For loops are traditionally used to do this type of jobs.
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