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JAVASCRIPT Snippets.

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

JAVASCRIPT

Handling File Uploads to a REST API with `FormData`

Implement robust file uploads to a REST API from the browser using JavaScript's `FormData` and the `fetch` API, supporting multiple files.

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JAVASCRIPT

Managing Async Operations with `useAsync`

A custom React hook for handling asynchronous operations like API calls, providing loading, error, and data states in a reusable pattern.

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JAVASCRIPT

Throttling Function Calls with `useThrottledCallback`

Create a custom React hook to throttle function calls, ensuring a callback fires at most once within a specified time window, preventing excessive re-renders.

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JAVASCRIPT

Efficient Array State Management with `useArray`

A custom React hook for managing array state with convenient methods like `add`, `remove`, `update`, and `clear`, simplifying list manipulations.

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JAVASCRIPT

Detecting Network Status with `useNetworkStatus`

A custom React hook to detect and manage the current online or offline network status of the browser, useful for responsive UI and data syncing.

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JAVASCRIPT

Tracking Scroll Position with `useScrollPosition`

A custom React hook to track the current vertical and horizontal scroll position of the window or a specified element, useful for scroll-based UI effects.

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JAVASCRIPT

Debounce State Changes with `useDebounce`

Create a custom React hook, `useDebounce`, to delay updating a state value, optimizing performance for fast-changing inputs like search fields and resize events.

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JAVASCRIPT

Detect Clicks Outside an Element with `useClickOutside`

Implement a `useClickOutside` React hook to detect when a user clicks anywhere outside a specified DOM element, useful for closing modals, dropdowns, and context menus.

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JAVASCRIPT

Persist State with `useLocalStorage` React Hook

Create a `useLocalStorage` hook to effortlessly synchronize and persist React state with the browser's local storage, ensuring data remains available across page reloads.

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JAVASCRIPT

Track Previous State or Prop with `usePrevious`

Develop a `usePrevious` React hook to access the previous value of any state or prop, enabling comparisons and logic based on changes over time in your components.

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JAVASCRIPT

Respond to CSS Media Queries with `useMediaQuery`

Build a `useMediaQuery` React hook to programmatically detect if a CSS media query matches, allowing dynamic component rendering and styling based on screen size.

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JAVASCRIPT

Validate Email Address with Regex

Learn to validate email addresses using a robust regular expression in JavaScript to ensure correct format for user input.

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