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let, const and scope

A short lesson on let, const and scope from the JavaScript Language Fundamentals micro course: what it is, where it shows up in real systems, and a practical example you can apply.

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02 / UNDERSTAND

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A short lesson on let, const and scope from the JavaScript Language Fundamentals micro course: what it is, where it shows up in real systems, and a practical example you can apply.

This is a learning outline. A complete worked tutorial has not been published for this topic yet.

01

Concept scope

A short lesson on let, const and scope from the JavaScript Language Fundamentals micro course: what it is, where it shows up in real systems, and a practical example you can apply.

03 / TRY IT

Prepare a focused example

  1. Choose one question about let, const and scope that you want to answer.
  2. Write down a small example, its inputs or starting point, and the result you expect.
  3. Explain your reasoning and note what you would like reviewed in a live or 1:1 session.
Keep your work

A short example, reasoning and an open question

Check your understanding

  • Explain the concept in your own words and identify where it fits in the subject.
  • Show one small example, the expected result and the reasoning behind it.
  • Record one limitation or edge case and a question to discuss with a mentor.
04 / LEARN WITH HELP

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