Web Development · module 10 of 13
Web App Capstones
Combine HTML, CSS, JavaScript, accessibility, APIs, and persistence into complete applications.
What this module covers
5 steps · Web Development
Step 1. Lesson: Web App Capstones
Combine HTML, CSS, JavaScript, accessibility, APIs, and persistence into complete applications. Learning objectives - Recognize when web app capstones is the right tool. - Explain the role of state, render, localStorage. - Build a small working example before combining it with a larger interface. - Identify one accessibility, maintainability, or error-handling improvement. Read the example, predict what it will do, then complete the small change described in the check question.
Combine HTML, CSS, JavaScript, accessibility, APIs, and persistence into complete applications. In Web Lab, make the state/interaction visible in the UI so completion is easy to verify.
Check yourself: [Web Lab] Use the example to demonstrate web app capstones.
Step 2. Quiz: Web App Capstones
Check your understanding of Web App Capstones.
A predictable state object makes rendering, persistence, and debugging easier. In Web Lab, make the state/interaction visible in the UI so completion is easy to verify.
Check yourself: [Web Lab] Complete the knowledge check.
Step 3. Exercise: Web App Capstones
Plan a small app by listing its state, events, render functions, persistence, empty state, and error state.
This exercise turns the Web App Capstones lesson into a working code change. In Web Lab, make the state/interaction visible in the UI so completion is easy to verify.
Check yourself: [Web Lab] Does the solution use state and render and localStorage?
Step 4. Review lab: Explain & improve Web App Capstones
Rebuild the exercise without copying the solution. Then improve it in two ways: make the code easier to understand and add one useful edge case, responsive behavior, accessibility improvement, or error state. Finally, write a short explanation of how state, render, localStorage work together.
Rebuilding from memory and improving an edge case turns recognition into durable skill. In Web Lab, make the state/interaction visible in the UI so completion is easy to verify.
Check yourself: [Web Lab] Does the improved version still use state, render, localStorage clearly?
Step 5. Mini project: Web App Capstones
Choose one capstone—plant tracker, finance app, or live weather app—and ship a polished accessible version.
The mini project combines the module lesson, quiz, and exercise into one portfolio-ready result. In Web Lab, make the state/interaction visible in the UI so completion is easy to verify.
Check yourself: [Web Lab] Does the project apply the module's web app capstones skills?
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