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Built with care, MIT licensed.v1.0·Accessibility statement·Education, not advice. Source

Concepts›Functions and composition

Concept 02 of 21

settled

Functions and composition

Name a thing once. Call it many times. Build big systems out of small named blocks.

Step 1

Predict first

In one or two sentences, what do you think this concept means? Wrong is fine; the small struggle is what makes the answer stick.

Variables, types, and control flow Data structures