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Vue.ts 3 API Reference
Quick reference with links to official Vue.ts documentation.
Official Documentation
Main Site: https://vuejs.org
Table of Contents
- Getting Started
- Essentials
- Components In-Depth
- Reusability
- Built-in Components
- API Reference
- TypeScript Patterns
Getting Started
Introduction
URL: https://vuejs.org/guide/introduction.html
- What is Vue?
- Progressive Framework
- Single-File Components
- API Styles (Options vs Composition)
- Which to choose?
Quick Start
URL: https://vuejs.org/guide/quick-start.html
- Creating a Vue Application
- Using Vue from CDN
- With build tools (Vite)
- IDE Setup
Creating an Application
URL: https://vuejs.org/guide/essentials/application.html
- Application instance
- Root component
- Mounting the app
- App configurations
Essentials
Template Syntax
URL: https://vuejs.org/guide/essentials/template-syntax.html
- Text interpolation
- Raw HTML (v-html)
- Attribute bindings (v-bind)
- TypeScript expressions
- Directives
Reactivity Fundamentals
URL: https://vuejs.org/guide/essentials/reactivity-fundamentals.html
ref()- Reactive state for primitivesreactive()- Reactive objects- Reactive proxy vs original
nextTick()- DOM update timing
Computed Properties
URL: https://vuejs.org/guide/essentials/computed.html
- Basic usage
- Computed caching vs methods
- Writable computed
- Best practices
Class and Style Bindings
URL: https://vuejs.org/guide/essentials/class-and-style.html
- Binding HTML classes
- Binding inline styles
- Object syntax
- Array syntax
Conditional Rendering
URL: https://vuejs.org/guide/essentials/conditional.html
v-if,v-else-if,v-elsev-show- v-if vs v-show
- v-if with v-for
List Rendering
URL: https://vuejs.org/guide/essentials/list.html
v-forwith arraysv-forwith objectsv-forwith ranges- Maintaining state with
key - Array change detection
Event Handling
URL: https://vuejs.org/guide/essentials/event-handling.html
- Listening to events (
v-on/@) - Method handlers
- Inline handlers
- Event modifiers (.stop, .prevent, etc.)
- Key modifiers
Form Input Bindings
URL: https://vuejs.org/guide/essentials/forms.html
v-modelbasics- Text, textarea inputs
- Checkboxes, radio buttons
- Select dropdowns
- Modifiers (.lazy, .number, .trim)
Lifecycle Hooks
URL: https://vuejs.org/guide/essentials/lifecycle.html
- Lifecycle diagram
onMounted(),onUpdated(),onUnmounted()onBeforeMount(),onBeforeUpdate(),onBeforeUnmount()onErrorCaptured(),onActivated(),onDeactivated()
Watchers
URL: https://vuejs.org/guide/essentials/watchers.html
watch()- Watch specific sourceswatchEffect()- Auto-track dependencies- Deep watchers
- Eager watchers (immediate)
- Callback flush timing
- Stopping watchers
Template Refs
URL: https://vuejs.org/guide/essentials/template-refs.html
- Accessing DOM elements
- Refs inside v-for
- Function refs
- Component refs
Components Basics
URL: https://vuejs.org/guide/essentials/component-basics.html
- Defining components
- Using components
- Passing props
- Listening to events
- Slots
Components In-Depth
Registration
URL: https://vuejs.org/guide/components/registration.html
- Global registration
- Local registration
- Component name casing
Props
URL: https://vuejs.org/guide/components/props.html
- Props declaration
- Prop types and validation
- Prop passing details
- One-way data flow
- Boolean casting
- Prop validation
Events
URL: https://vuejs.org/guide/components/events.html
- Emitting and listening to events
- Event arguments
- Declaring emitted events
- Events validation
- Usage with v-model
Component v-model
URL: https://vuejs.org/guide/components/v-model.html
- Basic usage
- v-model arguments
- Multiple v-model bindings
- Custom modifiers
Fallthrough Attributes
URL: https://vuejs.org/guide/components/attrs.html
- Attribute inheritance
- Disabling inheritance
- Accessing fallthrough attributes
- Multi-root nodes
Slots
URL: https://vuejs.org/guide/components/slots.html
- Default slot content
- Named slots
- Scoped slots
- Renderless components
Provide / Inject
URL: https://vuejs.org/guide/components/provide-inject.html
- Basic usage
- App-level provide
- Working with reactivity
- Working with Symbol keys
Async Components
URL: https://vuejs.org/guide/components/async.html
- Basic usage
- Loading and error states
- Using with Suspense
Reusability
Composables
URL: https://vuejs.org/guide/reusability/composables.html
- What is a composable?
- Mouse tracker example
- Async state example
- Conventions and best practices
- Usage restrictions
- Extracting composables
Custom Directives
URL: https://vuejs.org/guide/reusability/custom-directives.html
- Introduction
- Directive hooks
- Hook arguments
- Function shorthand
- Object literals
- Usage on components
Plugins
URL: https://vuejs.org/guide/reusability/plugins.html
- Introduction
- Writing a plugin
- Plugin options
- Provide / inject with plugins
Built-in Components
Transition
URL: https://vuejs.org/guide/built-ins/transition.html
- Basic usage
- CSS-based transitions
- TypeScript hooks
- Reusable transitions
- Appear on initial render
- Transition between elements
- Transition modes
TransitionGroup
URL: https://vuejs.org/guide/built-ins/transition-group.html
- Basic usage
- Move transitions
- Staggering list transitions
KeepAlive
URL: https://vuejs.org/guide/built-ins/keep-alive.html
- Basic usage
- Include / exclude
- Max cached instances
- Lifecycle of cached instance
Teleport
URL: https://vuejs.org/guide/built-ins/teleport.html
- Basic usage
- Using with components
- Multiple teleports on same target
- Disabling teleport
Suspense
URL: https://vuejs.org/guide/built-ins/suspense.html
- Async dependencies
- Loading state
- Error handling
- Combining with Transitions
- Note: Experimental feature
API Reference
Global API
URL: https://vuejs.org/api/application.html
- Application API
- General API
Composition API - Setup
URL: https://vuejs.org/api/composition-api-setup.html
setup()function<script setup>syntax
Composition API - Reactivity Core
URL: https://vuejs.org/api/reactivity-core.html
ref(),computed(),reactive(),readonly()watchEffect(),watchPostEffect(),watchSyncEffect()watch()isRef(),unref(),toRef(),toRefs(),toValue()isProxy(),isReactive(),isReadonly()
Composition API - Reactivity Utilities
URL: https://vuejs.org/api/reactivity-utilities.html
isRef(),unref(),toRef(),toRefs(),toValue()isProxy(),isReactive(),isReadonly()shallowRef(),triggerRef(),customRef()shallowReactive(),shallowReadonly()
Composition API - Reactivity Advanced
URL: https://vuejs.org/api/reactivity-advanced.html
shallowRef(),triggerRef(),customRef()shallowReactive(),shallowReadonly()toRaw(),markRaw()effectScope(),getCurrentScope(),onScopeDispose()
Composition API - Lifecycle Hooks
URL: https://vuejs.org/api/composition-api-lifecycle.html
onMounted(),onUpdated(),onUnmounted()onBeforeMount(),onBeforeUpdate(),onBeforeUnmount()onErrorCaptured(),onRenderTracked(),onRenderTriggered()onActivated(),onDeactivated(),onServerPrefetch()
Composition API - Dependency Injection
URL: https://vuejs.org/api/composition-api-dependency-injection.html
provide(),inject()hasInjectionContext()
Composition API - Helpers
URL: https://vuejs.org/api/composition-api-helpers.html
useAttrs(),useSlots()useModel(),useTemplateRef()useId(),useCssModule()
Options API - State
URL: https://vuejs.org/api/options-state.html
data,props,computedmethods,watch,emitsexpose
Options API - Rendering
URL: https://vuejs.org/api/options-rendering.html
template,rendercompilerOptions
Options API - Lifecycle
URL: https://vuejs.org/api/options-lifecycle.html
beforeCreate,createdbeforeMount,mountedbeforeUpdate,updatedbeforeUnmount,unmountederrorCaptured,renderTracked,renderTriggeredactivated,deactivated,serverPrefetch
Options API - Composition
URL: https://vuejs.org/api/options-composition.html
provide,injectmixins,extends
Options API - Misc
URL: https://vuejs.org/api/options-misc.html
name,inheritAttrs,components,directives
Component Instance
URL: https://vuejs.org/api/component-instance.html
$data,$props,$el,$refs$parent,$root,$slots,$attrs$watch(),$emit(),$forceUpdate(),$nextTick()
Built-in Directives
URL: https://vuejs.org/api/built-in-directives.html
v-text,v-html,v-show,v-if,v-else,v-else-if,v-forv-on,v-bind,v-modelv-slot,v-pre,v-once,v-memo,v-cloak
Built-in Components
URL: https://vuejs.org/api/built-in-components.html
<Transition>,<TransitionGroup><KeepAlive>,<Teleport>,<Suspense>
Built-in Special Elements
URL: https://vuejs.org/api/built-in-special-elements.html
<component>,<slot>
Built-in Special Attributes
URL: https://vuejs.org/api/built-in-special-attributes.html
key,ref,is
Single-File Component Syntax
URL: https://vuejs.org/api/sfc-syntax.html
- Language blocks
- Automatic name inference
- Pre-processors
- Src imports
- Custom blocks
SFC <script setup>
URL: https://vuejs.org/api/sfc-script-setup.html
- Basic syntax
- Top-level bindings
- Using components
- Using custom directives
- defineProps(), defineEmits()
- defineExpose(), defineOptions(), defineSlots(), defineModel()
- useSlots(), useAttrs()
- Normal
<script>alongside<script setup>
SFC CSS Features
URL: https://vuejs.org/api/sfc-css-features.html
- Scoped CSS
- CSS modules
v-bind()in CSS<style>withsrcimports
TypeScript Patterns
TypeScript with Composition API
URL: https://vuejs.org/guide/extras/composition-api-faq.html
- Define props with runtime object syntax
- Define emits with array/object syntax
- Use JSDoc for complex shapes
- Keep composables in
use*.ts - Prefer clear runtime validation for public component APIs
TypeScript with Options API
URL: https://vuejs.org/guide/essentials/component-basics.html
- Use
propsruntime validation - Keep event names explicit in
emits - Avoid implicit global properties where possible
- Prefer composition API for new code
Overview
URL: https://vuejs.org/guide/scaling-up/tooling.html
- IDE support
- Linting and formatting integration
- Volar extension basics
- Build-tool and plugin usage notes
Additional Resources
Best Practices
URL: https://vuejs.org/guide/best-practices/production-deployment.html
- Production deployment
- Performance
- Accessibility
- Security
Scaling Up
URL: https://vuejs.org/guide/scaling-up/sfc.html
- Single-File Components
- Tooling
- Routing
- State management
- Testing
- Server-Side Rendering (SSR)
Style Guide
URL: https://vuejs.org/style-guide/
- Priority A: Essential (Error Prevention)
- Priority B: Strongly Recommended
- Priority C: Recommended
- Priority D: Use with Caution
Vue Router
URL: https://router.vuejs.org/
- Official routing library
Pinia
- Official state management library
Vite
URL: https://vitejs.dev/
- Recommended build tool
Quick Search Tips
When searching official docs:
- Use the search bar at https://vuejs.org
- For API details, go directly to https://vuejs.org/api/
- For guides and concepts, start at https://vuejs.org/guide/
- For examples, check https://vuejs.org/examples/
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