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Artikel in der Kategorie Script.
VueUse is a collection of hundreds of essential Vue Composition Utilities for interacting with various browsers, sensors, animations, and state APIs, and more.
Your application may contain a lot of components that are using the same logic, like emitting the same event. In this case, it might be tempting to create a composable that will emit this event and is used in all components. But how do you emit an event from inside a composable?
Use the 'src' attribute to import an external file for a language block in your Vue Single-File Components (SFC).
Computed properties are evaluated lazily which means they are only evaluated when they are accessed. The computedEager() from VueUse is a good alternative for simple operations.
You can debug watchers by passing a third options object with onTrack and onTrigger callbacks.
Suspense components are used to display fallback content when waiting for some sort of asynchronous component to resolve.
Declaring and mutate v-model props as the same as normal variable using the defineModel.
shallowRef() is typically used for performance optimizations of large data structures, or integration with external state management systems.
You can validate prop types and events in Vue. If a requirement is not met, Vue will warn you in the browser's JavaScript console.
When should I use a render function in Vue.js? We’re going to cover some advanced Vue.js patterns when you need to use render functions.
How to correctly destructure props object in a Vue component while maintaining the reactivity.
To declare emits with full type inference support, we can use the defineEmits API, which is automatically available inside <script setup>.
To access the DOM after Vue has updated it in a watcher callback, you can use the flush post option.'
Sometimes we need to pass custom arguments to the event handler method and access the original DOM event.
Mutating props is an anti-pattern. You should use computed properties instead.
By default, parent scope attribute bindings that are not recognized as props will "fallthrough". This may not always be the desired behavior and, therefore, can be disabled. A typical use case is a component with multiple root nodes.
Props are the standard way to pass data from the parent to a child component. Sometimes, we want to share data from a parent component to all its children components without using a store. Provide / Inject solves this problem and avoids prop drilling.
When using Vue from a CDN, no "build step" is involved. This makes the setup much more straightforward and is suitable for enhancing static HTML or integrating with a backend framework.
Web Components is an umbrella term for a set of web native APIs that allows developers to create reusable custom elements. Vue has excellent support for both consuming and creating custom elements.
Components using script setup are closed by default and will not expose any of the bindings declared inside script setup.
