Kotlin Partition method – split List, Map of Objects example

Kotlin Partition method – split List, Map of Objects example

https://grokonez.com/kotlin/kotlin-partition-method-split-list-map-objects-example

This Kotlin tutorial shows you example that uses Partition method to split List, Map of Objects.

I. Technology

• Java 1.8
• Kotlin 1.1.2

  II. Overview

• We will split List/Map of Product(name,quantity) objects into 2 Lists using partition() method:

  
  inline fun  Iterable.partition(
  predicate: (T) -> Boolean
  ): Pair, List>
  

  predicate is the condition for the first List of Pair, all remain items will be contained in the second List.
• We also use Destructuring Declaration syntax to destructure the Pair into 2 Lists.

  
  val (positive, negative) = List.partition { predicate }
  

  III. Practice

  0. Product Class

https://grokonez.com/kotlin/kotlin-partition-method-split-list-map-objects-example