Surya JS Journey

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ChallengeBeginner8 min

Fix a scope shadowing bug

Correct a function so it logs the local value first and the outer value second without mixing the two scopes.

Update the function so the first log prints `inner` and the second log prints `outer`. Keep both values available and do not change the final two `console.log` calls.

Challenge Brief

Solve the exercise by editing the starter code and running it in the panel. Compare your result against the expected outcome, then refine your solution until the behavior matches.

  1. 1. Read the prompt carefully and identify the missing behavior.
  2. 2. Update only the parts of the starter code needed to solve it.
  3. 3. Run the code and compare actual output with the expected result.

Hints

  • Use a local variable inside the function for the inner value.
  • The outer value should still exist outside the function.
  • Do not overwrite the outer variable globally.

Related Concepts

Variables: var, let, const

JavaScript variables can be declared with `var`, `let`, or `const`, and each one has different scope and reassignment behavior.

Scope

Scope determines where variables are visible and which parts of your code can access them.

Challenge Workspace

scope-shadowing.js

Edit the code, run it in the browser, and inspect the console output below. Reset restores the original snippet for this page.

Editor

9 lines

Output

0 entries

Mode

challenge

Workspace Notes

Changes stay local until you run the code. Reset restores the original snippet immediately for another pass.

Live editing

Safe to change before every run.

Fast reset

Return to the original starter instantly.

scope-shadowing.js
9 linesMonaco Editor
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Editor Actions

Run your solution and compare the result with the expected challenge output.

Console0 entries

Run the code to see output here.

Challenge Result

Run the code to check whether your solution matches the expected outcome.

Expected Output

inner
outer

Continue in Playground

Open this starter code in the shared playground if you want a focused space for experimenting outside the challenge page.

Open in Playground