Module 6 · Scope, Hoisting and Closures
Problems: Scope, Hoisting and Closures
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Ten problems, graded against hidden tests on Node 22, the same JavaScript the Playground runs. You met every one of them in this module. running-average and many-counters were in lesson 01, and loop-capture, scope-lookup and tdz-check were in lesson 02. Lesson 03 held wallets and memo-stairs, lesson 04 held stale-clicks, and debounce-fires and rate-limiter were in the CP and Interview Pack.
Checking what this lesson needs for you…
What is inside Problems: Scope, Hoisting and Closures
- Reading commands until the count runs out
- One closure per thing that keeps state
- Simulating scopes with a stack of boxes
- The edges the hidden tests try