JavaScript, Refreshed
Functions, scope & closures
Lesson 2 of 5
Functions are values, and they remember the scope they were born in.
What you'll learn
- Treat functions as first-class values you can pass and return
- Reason about lexical scope — where a variable is visible
- Use a closure to keep private state alive between calls
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Not sure yet? Try the free lesson first: Values, types & coercion