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AI APPLICATION ENGINEERING

AI-Powered JavaScript Applications Lab

A feedback classifier sends “urgent” to a queue that cannot handle it. Run the recorded case, repair the validator, and prove the fix before exporting the app.

Start the repair

Recorded responses and real JavaScript execution. No key needed.

Discover, predict, understand

Worked code

Walk through the important operations
    

    

    Experiment and build
    Ctrl or Command + Enter runs your code. Checks use the lesson’s standard input and fixture.
    

    Application output
    Request and response inspector
      Streaming output
      

      Test and debug
      Expected result for the primary input
      

      Explain, reflect, extend
      Pass the checks on your current code and write an explanation to save verified work.
      

      AI prompt studio
      Generate a prompt from this lesson and your code. Review the draft and remove any private data before sharing it with an assistant. Test suggested changes with the checks above.
      

      

      



      

      Build testable JavaScript AI applications
      Practice HTTP, response validation, streaming, context, evaluation and deployment with runnable exercises.
      Browse interactive guides · AI learning path