Learn To Use Composables: The Swiss Army Knife Of Vue Developers

The workshop aims to teach participants how to use Vue.js composables to improve their day-to-day work by addressing common problems such as mixins, prop drilling, and using DOM APIs.

A Vue.js composable is a reusable function that encapsulates logic and state, making it easier to manage complex functionalities across Vue components. They follow the Composition API and can be used to replace mixins and prop drilling.

Composables provide a centralized and reusable way to manage state, mutations, and side effects without the common issues associated with mixins, such as naming collisions and exposing everything by default. They also offer better reusability and flexibility.

You can use composables to centralize state management, eliminating the need to pass props down multiple levels of components. This makes components more reusable and decoupled from the component hierarchy.

The Intersection Observer API is a DOM API that allows you to asynchronously observe changes in the intersection of a target element with an ancestor element or with a top-level document's viewport. It is useful for implementing lazy-loading, infinite scrolling, and other visibility-based functionalities.

You can test composables by creating unit tests that mock dependencies and assert the expected behavior of the composable. Tools like Vue Test Utils and Jest can be used to mount components and verify the outcomes of the composable functions.

The Vue Use library is a collection of essential Vue Composition API utils composed of composables. It provides ready-to-use, well-optimized, and 3-shakable composables that cover a wide range of functionalities, from state management to DOM interactions.

The Composition API in Vue.js provides better code organization, reusability, and type safety compared to the Options API. It allows developers to create more modular and maintainable code by encapsulating logic into composables.

Yes, composables can be used outside of Vue components. However, if you want to use lifecycle hooks (like mounted and unmounted), you need to use them within a setup function inside a Vue component.

Common patterns for using composables in Vue.js include state management, handling asynchronous operations, and DOM interactions. Examples include useState for managing global state, useAsync for handling async functions, and useIntersectionObserver for observing DOM element visibility.