Surya JS Journey

Learn JavaScript through concepts, code, and guided practice.

A focused workspace for concept study, interactive examples, visual explanations, and challenge solving.

ChallengeBeginner6 min

Choose the right declaration

Replace the wrong declaration so the counter can change and the lesson title stays constant.

Make the code run without errors. `count` should increase to `2`, and `title` should stay unchanged. Use the appropriate declaration keywords.

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

  • The variable being reassigned should not be `const`.
  • The value that never changes can stay constant.
  • Only change the declarations, not the logs.

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.

Challenge Workspace

variables-fix.js

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

Editor

7 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.

variables-fix.js
7 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

2
JavaScript

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