Lesson 12 / 25

Composition

Use Composition as a clear part of React.

The essential idea

Composition is a practical part of React. Begin with the problem it solves, then identify the input, transformation, and result. This prevents syntax from becoming disconnected facts.

See the learning path

This topic is one step between a source idea and a useful, checked outcome.

A visual learning path for React.
Figure 5.1 — Keep the whole path visible.

Common pitfall

Do not learn Composition by copying a finished answer. Reduce it to a small example and use the result to test your explanation.

Quick check

Quick check: What is a strong first practice for Composition?

  • Run one focused example.
  • Memorize without testing.
  • Ignore feedback.
Answer

Run one focused example. — Focused experiments show cause and effect.