Sequences: How They Work & How To Use Them

How to create a Sequence, how they work under the hood & the difference between intermediate and terminal operations, and how laziness and infiniteness arise from a more fundamental property.

— — — — — — — — — — — — — — —

THE CURRENT VERSION OF THIS ARTICLE IS PUBLISHED HERE.

— — — — — — — — — — — — — — —

Tags: #FYI++

This article is part of the Kotlin Primer, an opinionated guide to the Kotlin language, which is indented to help facilitate Kotlin adoption inside Java-centric organizations. It was originally written as an organizational learning resource for Etnetera a.s. and I would like to express my sincere gratitude for their support.

It is recommended to read the Introduction before moving on. Check out the Table of Contents for all articles.

Creating a Sequence

There are three main ways you can create a sequence:

• By directly specifying its elements, via sequenceOf
• From an Iterable, via asSequence