foreach

Lesson in the Scala Roadmap · Stage 9: Working with Strings

Last updated 14 September 2026

What is foreach?

The foreach method is used to apply a function to each element of a collection for its side effects. Unlike methods like map or filter, foreach does not return a value; it is used primarily for operations that have side effects, such as printing elements or modifying external state.

Study this in the interactive course See the whole Scala roadmap

Free resources to learn foreach

Official docsfor Loops | Scala Book | Scala Documentation
ArticleScala Tutorial - Foreach Function Example
ArticleUsing foreach() Method in Scala Collections | Baeldung on Scala

foreach: common questions

Can I learn foreach in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain foreach in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this foreach tutorial for beginners?

It is lesson 47 of 165 in the free Scala roadmap, in stage 9, Working with Strings. If you are new to Scala, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.