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Doon Coding Academy

DCA Lab

Learn by solving real coding problems. Debug bugs, fix logic and practise software problem solving directly in your browser.

Start without signing up: choose a published mission and work through its scenario, code and checks.

Start First Challenge

How the Lab works

  1. Step 01

    Read the mission

    Understand the scenario, objective and expected behaviour.

  2. Step 02

    Try a fix

    Edit the starter function and run the objective checks.

  3. Step 03

    Learn from results

    Review passing and failing cases, then iterate at your pace.

Featured beginner mission

Fix the Discount Calculation Bug

Repair a JavaScript function so it returns the correct discounted product price.

Published challenges

Choose a mission

1 mission available

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