Vue.js • Chapter 60 • Foundations to Advanced
Capstone Projects and Production Checklist
Each topic includes substantial explanation, ten focused examples, its own Vue code example, step-by-step reasoning, expected behavior, and practice.
60.1 Planning a Vue Application
Planning a Vue Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. In Chapter 60, trace the value or control flow from its source to the rendered interface so you can explain why Vue changes the screen.
For Planning a Vue Application in Chapter 60, inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Keep writable state ownership explicit, derive values when possible, and separate display calculations from network, DOM, storage, timer, or other external work.
This lesson connects Planning a Vue Application to capstone projects and production checklist. Start with one working case, verify the expected output, then add one edge case and explain what Vue tracks, reuses, creates, removes, or updates.
Concept in plain language
Planning a Vue Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
10 teaching examples
Example 1: Smallest useful case
Build the smallest shopping cart that demonstrates Planning a Vue Application. Keep one input and one visible result, then explain reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Planning a Vue Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 1 for Chapter 60, topic 1.
Example 2: Change one reactive value
Change one value involved in Planning a Vue Application inside the lesson tracker. Predict what Vue will update before running it, then compare the prediction with the rendered result.
Example 3: Parent-child comparison
Use Planning a Vue Application across two components in the booking form. Compare which component owns the writable data and which component only receives or presents it.
Example 4: Edge case
Add an empty, missing, invalid, delayed, or rapidly changing value to the message panel. Handle the Planning a Vue Application edge case explicitly instead of leaving stale output.
Example 5: Accessibility review
Use Planning a Vue Application in the admin table while checking semantic HTML, labels, focus order, keyboard access, and understandable status feedback. Planning a Vue Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 5 for Chapter 60, topic 1.
Example 6: State ownership review
Remove duplicated state from the photo gallery. For Planning a Vue Application, derive values when possible and keep the writable source with the component or store that owns it.
Example 7: Slow-network scenario
Assume the notification center has a slow request while using Planning a Vue Application. Decide what remains interactive, what shows pending feedback, and how stale responses are prevented.
Example 8: Refactoring exercise
Extract the Planning a Vue Application responsibility from a crowded task board into a focused component or composable with a narrow API.
Example 9: Performance experiment
Measure the language selector before optimizing Planning a Vue Application. Check reactive work, repeated calculations, list size, component updates, and user-visible delay.
Example 10: Production review
Review Planning a Vue Application in the quiz screen for errors, security, localization, RTL, narrow screens, accessibility, and what monitoring should report. Planning a Vue Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 10 for Chapter 60, topic 1.
Vue code example
<script setup>
import { ref } from 'vue'
const topic = "Planning a Vue Application"
const active = ref(false)
</script>
<template>
<section><h2>{{ topic }}</h2><button :aria-pressed="active" @click="active=!active">Toggle state</button><p>{{ active ? 'Active' : 'Inactive' }}</p></section>
</template>Step-by-step code explanation
- Identify the Vue responsibility demonstrated by Planning a Vue Application.
- Read the reactive state, props, route/store input, or injected value before the template.
- Trace the event, dependency, watcher, lifecycle hook, or navigation action that changes the display.
- Test one normal path and one edge case, including cleanup when external work is involved.
- Confirm accessibility, mobile width, and RTL behavior for user-facing controls and translated text.
Expected behavior: A small Vue interface demonstrates Planning a Vue Application and updates according to the interaction or data in the example.
Practice exercise
Create a small Vue feature focused on Planning a Vue Application from Chapter 60. Predict the result before running it, test one edge case, and explain which reactive value, prop, event, route, store, or lifecycle step caused the update. Then check accessibility, narrow-screen width, and RTL behavior where relevant.
60.2 Building a Dashboard
Building a Dashboard is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. In Chapter 60, trace the value or control flow from its source to the rendered interface so you can explain why Vue changes the screen.
For Building a Dashboard in Chapter 60, inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Keep writable state ownership explicit, derive values when possible, and separate display calculations from network, DOM, storage, timer, or other external work.
This lesson connects Building a Dashboard to capstone projects and production checklist. Start with one working case, verify the expected output, then add one edge case and explain what Vue tracks, reuses, creates, removes, or updates.
Concept in plain language
Building a Dashboard is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
10 teaching examples
Example 1: Smallest useful case
Build the smallest message panel that demonstrates Building a Dashboard. Keep one input and one visible result, then explain reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Building a Dashboard is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 1 for Chapter 60, topic 2.
Example 2: Change one reactive value
Change one value involved in Building a Dashboard inside the admin table. Predict what Vue will update before running it, then compare the prediction with the rendered result.
Example 3: Parent-child comparison
Use Building a Dashboard across two components in the photo gallery. Compare which component owns the writable data and which component only receives or presents it.
Example 4: Edge case
Add an empty, missing, invalid, delayed, or rapidly changing value to the notification center. Handle the Building a Dashboard edge case explicitly instead of leaving stale output.
Example 5: Accessibility review
Use Building a Dashboard in the task board while checking semantic HTML, labels, focus order, keyboard access, and understandable status feedback. Building a Dashboard is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 5 for Chapter 60, topic 2.
Example 6: State ownership review
Remove duplicated state from the language selector. For Building a Dashboard, derive values when possible and keep the writable source with the component or store that owns it.
Example 7: Slow-network scenario
Assume the quiz screen has a slow request while using Building a Dashboard. Decide what remains interactive, what shows pending feedback, and how stale responses are prevented.
Example 8: Refactoring exercise
Extract the Building a Dashboard responsibility from a crowded analytics view into a focused component or composable with a narrow API.
Example 9: Performance experiment
Measure the support form before optimizing Building a Dashboard. Check reactive work, repeated calculations, list size, component updates, and user-visible delay.
Example 10: Production review
Review Building a Dashboard in the course dashboard for errors, security, localization, RTL, narrow screens, accessibility, and what monitoring should report. Building a Dashboard is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 10 for Chapter 60, topic 2.
Vue code example
<script setup>
import { ref } from 'vue'
const topic = "Building a Dashboard"
const active = ref(false)
</script>
<template>
<section><h2>{{ topic }}</h2><button :aria-pressed="active" @click="active=!active">Toggle state</button><p>{{ active ? 'Active' : 'Inactive' }}</p></section>
</template>Step-by-step code explanation
- Identify the Vue responsibility demonstrated by Building a Dashboard.
- Read the reactive state, props, route/store input, or injected value before the template.
- Trace the event, dependency, watcher, lifecycle hook, or navigation action that changes the display.
- Test one normal path and one edge case, including cleanup when external work is involved.
- Confirm accessibility, mobile width, and RTL behavior for user-facing controls and translated text.
Expected behavior: A small Vue interface demonstrates Building a Dashboard and updates according to the interaction or data in the example.
Practice exercise
Create a small Vue feature focused on Building a Dashboard from Chapter 60. Predict the result before running it, test one edge case, and explain which reactive value, prop, event, route, store, or lifecycle step caused the update. Then check accessibility, narrow-screen width, and RTL behavior where relevant.
60.3 Building a Form Workflow
Building a Form Workflow is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. In Chapter 60, trace the value or control flow from its source to the rendered interface so you can explain why Vue changes the screen.
For Building a Form Workflow in Chapter 60, inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Keep writable state ownership explicit, derive values when possible, and separate display calculations from network, DOM, storage, timer, or other external work.
This lesson connects Building a Form Workflow to capstone projects and production checklist. Start with one working case, verify the expected output, then add one edge case and explain what Vue tracks, reuses, creates, removes, or updates.
Concept in plain language
Building a Form Workflow is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
10 teaching examples
Example 1: Smallest useful case
Build the smallest notification center that demonstrates Building a Form Workflow. Keep one input and one visible result, then explain reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Building a Form Workflow is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 1 for Chapter 60, topic 3.
Example 2: Change one reactive value
Change one value involved in Building a Form Workflow inside the task board. Predict what Vue will update before running it, then compare the prediction with the rendered result.
Example 3: Parent-child comparison
Use Building a Form Workflow across two components in the language selector. Compare which component owns the writable data and which component only receives or presents it.
Example 4: Edge case
Add an empty, missing, invalid, delayed, or rapidly changing value to the quiz screen. Handle the Building a Form Workflow edge case explicitly instead of leaving stale output.
Example 5: Accessibility review
Use Building a Form Workflow in the analytics view while checking semantic HTML, labels, focus order, keyboard access, and understandable status feedback. Building a Form Workflow is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 5 for Chapter 60, topic 3.
Example 6: State ownership review
Remove duplicated state from the support form. For Building a Form Workflow, derive values when possible and keep the writable source with the component or store that owns it.
Example 7: Slow-network scenario
Assume the course dashboard has a slow request while using Building a Form Workflow. Decide what remains interactive, what shows pending feedback, and how stale responses are prevented.
Example 8: Refactoring exercise
Extract the Building a Form Workflow responsibility from a crowded profile editor into a focused component or composable with a narrow API.
Example 9: Performance experiment
Measure the search panel before optimizing Building a Form Workflow. Check reactive work, repeated calculations, list size, component updates, and user-visible delay.
Example 10: Production review
Review Building a Form Workflow in the shopping cart for errors, security, localization, RTL, narrow screens, accessibility, and what monitoring should report. Building a Form Workflow is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 10 for Chapter 60, topic 3.
Vue code example
<script setup>
import { ref } from 'vue'
const topic = "Building a Form Workflow"
const active = ref(false)
</script>
<template>
<section><h2>{{ topic }}</h2><button :aria-pressed="active" @click="active=!active">Toggle state</button><p>{{ active ? 'Active' : 'Inactive' }}</p></section>
</template>Step-by-step code explanation
- Identify the Vue responsibility demonstrated by Building a Form Workflow.
- Read the reactive state, props, route/store input, or injected value before the template.
- Trace the event, dependency, watcher, lifecycle hook, or navigation action that changes the display.
- Test one normal path and one edge case, including cleanup when external work is involved.
- Confirm accessibility, mobile width, and RTL behavior for user-facing controls and translated text.
Expected behavior: A small Vue interface demonstrates Building a Form Workflow and updates according to the interaction or data in the example.
Practice exercise
Create a small Vue feature focused on Building a Form Workflow from Chapter 60. Predict the result before running it, test one edge case, and explain which reactive value, prop, event, route, store, or lifecycle step caused the update. Then check accessibility, narrow-screen width, and RTL behavior where relevant.
60.4 Building a Routed Application
Building a Routed Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. In Chapter 60, trace the value or control flow from its source to the rendered interface so you can explain why Vue changes the screen.
For Building a Routed Application in Chapter 60, inspect URL state, route parameters, matched records, navigation lifecycle, and failure states. Keep writable state ownership explicit, derive values when possible, and separate display calculations from network, DOM, storage, timer, or other external work.
This lesson connects Building a Routed Application to capstone projects and production checklist. Start with one working case, verify the expected output, then add one edge case and explain what Vue tracks, reuses, creates, removes, or updates.
Concept in plain language
Building a Routed Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
10 teaching examples
Example 1: Smallest useful case
Build the smallest quiz screen that demonstrates Building a Routed Application. Keep one input and one visible result, then explain URL state, route parameters, matched records, navigation lifecycle, and failure states. Building a Routed Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 1 for Chapter 60, topic 4.
Example 2: Change one reactive value
Change one value involved in Building a Routed Application inside the analytics view. Predict what Vue will update before running it, then compare the prediction with the rendered result.
Example 3: Parent-child comparison
Use Building a Routed Application across two components in the support form. Compare which component owns the writable data and which component only receives or presents it.
Example 4: Edge case
Add an empty, missing, invalid, delayed, or rapidly changing value to the course dashboard. Handle the Building a Routed Application edge case explicitly instead of leaving stale output.
Example 5: Accessibility review
Use Building a Routed Application in the profile editor while checking semantic HTML, labels, focus order, keyboard access, and understandable status feedback. Building a Routed Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 5 for Chapter 60, topic 4.
Example 6: State ownership review
Remove duplicated state from the search panel. For Building a Routed Application, derive values when possible and keep the writable source with the component or store that owns it.
Example 7: Slow-network scenario
Assume the shopping cart has a slow request while using Building a Routed Application. Decide what remains interactive, what shows pending feedback, and how stale responses are prevented.
Example 8: Refactoring exercise
Extract the Building a Routed Application responsibility from a crowded lesson tracker into a focused component or composable with a narrow API.
Example 9: Performance experiment
Measure the booking form before optimizing Building a Routed Application. Check reactive work, repeated calculations, list size, component updates, and user-visible delay.
Example 10: Production review
Review Building a Routed Application in the message panel for errors, security, localization, RTL, narrow screens, accessibility, and what monitoring should report. Building a Routed Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 10 for Chapter 60, topic 4.
Vue code example
<script setup>
import { useRoute, useRouter } from 'vue-router'
const route = useRoute()
const router = useRouter()
function goHome(){ router.push('/') }
</script>
<template><p>Route: {{ route.fullPath }}</p><button @click="goHome">Home</button></template>Step-by-step code explanation
- Identify the Vue responsibility demonstrated by Building a Routed Application.
- Read the reactive state, props, route/store input, or injected value before the template.
- Trace the event, dependency, watcher, lifecycle hook, or navigation action that changes the display.
- Test one normal path and one edge case, including cleanup when external work is involved.
- Confirm accessibility, mobile width, and RTL behavior for user-facing controls and translated text.
Expected behavior: A small Vue interface demonstrates Building a Routed Application and updates according to the interaction or data in the example.
Practice exercise
Create a small Vue feature focused on Building a Routed Application from Chapter 60. Predict the result before running it, test one edge case, and explain which reactive value, prop, event, route, store, or lifecycle step caused the update. Then check accessibility, narrow-screen width, and RTL behavior where relevant.
60.5 Production Review Checklist
Production Review Checklist is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. In Chapter 60, trace the value or control flow from its source to the rendered interface so you can explain why Vue changes the screen.
For Production Review Checklist in Chapter 60, inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Keep writable state ownership explicit, derive values when possible, and separate display calculations from network, DOM, storage, timer, or other external work.
This lesson connects Production Review Checklist to capstone projects and production checklist. Start with one working case, verify the expected output, then add one edge case and explain what Vue tracks, reuses, creates, removes, or updates.
Concept in plain language
Production Review Checklist is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
10 teaching examples
Example 1: Smallest useful case
Build the smallest course dashboard that demonstrates Production Review Checklist. Keep one input and one visible result, then explain reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Production Review Checklist is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 1 for Chapter 60, topic 5.
Example 2: Change one reactive value
Change one value involved in Production Review Checklist inside the profile editor. Predict what Vue will update before running it, then compare the prediction with the rendered result.
Example 3: Parent-child comparison
Use Production Review Checklist across two components in the search panel. Compare which component owns the writable data and which component only receives or presents it.
Example 4: Edge case
Add an empty, missing, invalid, delayed, or rapidly changing value to the shopping cart. Handle the Production Review Checklist edge case explicitly instead of leaving stale output.
Example 5: Accessibility review
Use Production Review Checklist in the lesson tracker while checking semantic HTML, labels, focus order, keyboard access, and understandable status feedback. Production Review Checklist is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 5 for Chapter 60, topic 5.
Example 6: State ownership review
Remove duplicated state from the booking form. For Production Review Checklist, derive values when possible and keep the writable source with the component or store that owns it.
Example 7: Slow-network scenario
Assume the message panel has a slow request while using Production Review Checklist. Decide what remains interactive, what shows pending feedback, and how stale responses are prevented.
Example 8: Refactoring exercise
Extract the Production Review Checklist responsibility from a crowded admin table into a focused component or composable with a narrow API.
Example 9: Performance experiment
Measure the photo gallery before optimizing Production Review Checklist. Check reactive work, repeated calculations, list size, component updates, and user-visible delay.
Example 10: Production review
Review Production Review Checklist in the notification center for errors, security, localization, RTL, narrow screens, accessibility, and what monitoring should report. Production Review Checklist is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements. This is example 10 for Chapter 60, topic 5.
Vue code example
<script setup>
import { ref } from 'vue'
const topic = "Production Review Checklist"
const active = ref(false)
</script>
<template>
<section><h2>{{ topic }}</h2><button :aria-pressed="active" @click="active=!active">Toggle state</button><p>{{ active ? 'Active' : 'Inactive' }}</p></section>
</template>Step-by-step code explanation
- Identify the Vue responsibility demonstrated by Production Review Checklist.
- Read the reactive state, props, route/store input, or injected value before the template.
- Trace the event, dependency, watcher, lifecycle hook, or navigation action that changes the display.
- Test one normal path and one edge case, including cleanup when external work is involved.
- Confirm accessibility, mobile width, and RTL behavior for user-facing controls and translated text.
Expected behavior: A small Vue interface demonstrates Production Review Checklist and updates according to the interaction or data in the example.
Practice exercise
Create a small Vue feature focused on Production Review Checklist from Chapter 60. Predict the result before running it, test one edge case, and explain which reactive value, prop, event, route, store, or lifecycle step caused the update. Then check accessibility, narrow-screen width, and RTL behavior where relevant.
Chapter 60 review — 10 questions and answers
1. What is the purpose of Planning a Vue Application?
Answer: Planning a Vue Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
2. What should you inspect when Planning a Vue Application behaves unexpectedly?
Answer: Inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Reduce the feature to a small component and trace reactive input through the rendered result.
3. What is the purpose of Building a Dashboard?
Answer: Building a Dashboard is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
4. What should you inspect when Building a Dashboard behaves unexpectedly?
Answer: Inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Reduce the feature to a small component and trace reactive input through the rendered result.
5. What is the purpose of Building a Form Workflow?
Answer: Building a Form Workflow is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
6. What should you inspect when Building a Form Workflow behaves unexpectedly?
Answer: Inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Reduce the feature to a small component and trace reactive input through the rendered result.
7. What is the purpose of Building a Routed Application?
Answer: Building a Routed Application is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
8. What should you inspect when Building a Routed Application behaves unexpectedly?
Answer: Inspect URL state, route parameters, matched records, navigation lifecycle, and failure states. Reduce the feature to a small component and trace reactive input through the rendered result.
9. What is the purpose of Production Review Checklist?
Answer: Production Review Checklist is a focused part of Vue application design in Chapter 60. Study its inputs, reactive dependencies, component ownership, rendered result, edge cases, and cleanup requirements.
10. What should you inspect when Production Review Checklist behaves unexpectedly?
Answer: Inspect reactive inputs, component ownership, rendered output, edge cases, and what causes another update. Reduce the feature to a small component and trace reactive input through the rendered result.