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JAVASCRIPT Snippets.

Curated list of production-ready JAVASCRIPT scripts and coding solutions.

JAVASCRIPT

useFetch Hook for Asynchronous Data Fetching

Develop a reusable `useFetch` React hook to manage data fetching, including loading, error, and data states, simplifying API integrations in components.

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JAVASCRIPT

useIsMounted Hook to Track Component Mount Status

Create a simple `useIsMounted` React hook to safely determine if a component is currently mounted, preventing state updates on unmounted components.

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JAVASCRIPT

useArray Hook for Managing Array State

Implement a `useArray` React hook providing common utility functions (add, remove, update, clear) for managing array state in a declarative way.

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JAVASCRIPT

Vue 3 Composable for Persisting State to Local Storage

Learn to create a custom Vue 3 composable to effortlessly persist reactive state to local storage, ensuring data persistence across page reloads and enhancing user experience.

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JAVASCRIPT

Vue 3 Pinia Store for Global User Authentication State

Implement a Pinia store in Vue 3 to manage global user authentication state, including login status, user details, and actions, providing a centralized and efficient state management solution.

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JAVASCRIPT

Vue 3 Teleport for Rendering Modals Outside Component Tree

Utilize Vue 3's Teleport feature to render a modal or dialog component directly into the body, preventing z-index issues and ensuring proper overlay behavior regardless of component nesting.

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JAVASCRIPT

Vue 3 Dynamic Components for Tabbed Interfaces

Implement a flexible tabbed interface in Vue 3 using dynamic components and the `is` attribute, allowing you to switch between different components dynamically based on user selection.

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JAVASCRIPT

Vue 3 TransitionGroup for Animating List Item Changes

Animate the addition, removal, and reordering of list items in Vue 3 using the `<TransitionGroup>` component, creating smooth and engaging user interface interactions.

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JAVASCRIPT

Implementing a Simple Dark/Light Theme Switch with useContext

Create a global theme context in React using useContext to easily manage and switch between dark and light modes across your application without prop drilling.

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JAVASCRIPT

Auto-focusing an Input Field on Component Mount

Learn how to use the useRef and useEffect hooks in React to programmatically focus an input field or any DOM element when its component mounts.

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JAVASCRIPT

Preventing Unnecessary Rerenders with useCallback

Enhance React component performance by memoizing callback functions using useCallback, ensuring stable references for child components to prevent unnecessary re-renders.

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JAVASCRIPT

Detect if an Element is in Viewport with `useInView` Hook

Create a custom React hook `useInView` to efficiently determine if a given DOM element is currently within the user's viewport using `IntersectionObserver`, perfect for lazy loading and animations.

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