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JAVASCRIPT Snippets.

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

JAVASCRIPT

Polling an API for Updates

Implement an API polling mechanism in JavaScript to periodically check an endpoint for updates, useful for displaying real-time-ish data or long-running task status.

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JAVASCRIPT

Manage Asynchronous Operations with useAsync

A powerful React hook to manage the lifecycle of any asynchronous operation, handling loading, error, and data states for cleaner UI and better user experience.

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JAVASCRIPT

Implement Undo/Redo Functionality with useUndoRedo

A React hook that enables easy undo and redo capabilities for any piece of state, managing a history of changes for interactive applications like editors or drawing tools.

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JAVASCRIPT

Simplify Form State & Validation with useForm

A robust React hook for managing complex form states, values, and errors, providing a streamlined API for handling user input and custom validation logic.

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JAVASCRIPT

Debug Component Re-renders with useWhyDidYouUpdate

A React hook that logs precisely why a component re-rendered by comparing current and previous props/state, an essential tool for performance debugging and optimization.

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JAVASCRIPT

Implement Dark Mode with useDarkMode Hook

A custom React hook to effortlessly add dark mode functionality to your application, persisting user preference across sessions using localStorage and system preferences.

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JAVASCRIPT

Manage setInterval Safely with useInterval

Create a custom React hook, useInterval, to reliably execute a function repeatedly at fixed time intervals, automatically handling lifecycle for cleanup.

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JAVASCRIPT

Dynamically Respond to CSS Media Queries with useMediaQuery

Implement a React hook, useMediaQuery, to dynamically detect and respond to CSS media query changes, enabling responsive component rendering.

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JAVASCRIPT

Lazy Load Elements and Detect Visibility with useIntersectionObserver

Utilize the useIntersectionObserver React hook to efficiently detect when a DOM element enters or exits the viewport, enabling lazy loading or scroll-triggered effects.

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JAVASCRIPT

Attach Global Event Listeners Safely with useEventListener

Create a versatile useEventListener React hook to easily attach and detach event listeners to the window, document, or a specific DOM element, ensuring proper cleanup.

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JAVASCRIPT

Copy Text to Clipboard Easily with useCopyToClipboard

Implement a React hook, useCopyToClipboard, to programmatically copy any given text to the user's clipboard, providing a success/error state.

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JAVASCRIPT

Basic Form Validation with Vue 3 Composition API

Learn to implement flexible form validation logic in Vue 3 using the Composition API and a custom reusable composable for common validation rules.

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