CapstoneJavaScript5 hours

Create Module 25 Web Components

Create a portfolio-ready interactive JavaScript lab that proves you can use Module 25 Web Components, not just read about it.

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Build brief

You are turning the Module 25 Web Components module into a concrete artifact. Keep the scope small, make the behavior visible, and leave enough notes that another learner can understand the result.

Requirements

  • Use at least two ideas from Module 25 Web Components.
  • Keep the implementation small enough to explain in five minutes.
  • Add three test cases or examples that show normal and edge behavior.
  • Write a short reflection that explains what broke and how you fixed it.

Deliverables

  • A working implementation connected to Module 25 Web Components.
  • A short README-style explanation of usage and expected output.
  • A small set of examples or tests that prove the behavior.

Project checklist

Source lessons

READMEModule-25-Web-Components/25.1-Custom-Elements/README.mdOpenREADMEModule-25-Web-Components/25.2-Shadow-DOM/README.mdOpenREADMEModule-25-Web-Components/25.3-HTML-Templates/README.mdOpenREADMEModule-25-Web-Components/25.4-Component-Patterns/README.mdOpenexamplesModule-25-Web-Components/25.1-Custom-Elements/examples.jsOpenExercises NotebookModule-25-Web-Components/25.1-Custom-Elements/exercises.jsOpen

Milestones and skills

  1. 01Read the linked source lessons and note the key APIs or formulas.
  2. 02Sketch the smallest useful version of the interactive JavaScript lab.
  3. 03Build the core behavior before adding polish.
  4. 04Run the examples, notebook cells, or manual tests.
  5. 05Write the final explanation and mark the checklist complete.
Module 25 Web ComponentsState handlingBrowser-friendly codePlanningTestingDebuggingExplanation