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JAVASCRIPT Snippets.

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

JAVASCRIPT

Dynamic Event Listener Management with useEventListener Hook

A custom React hook to simplify adding and removing event listeners dynamically, ensuring proper cleanup on component unmount to prevent memory leaks.

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JAVASCRIPT

Robust Form Management and Validation with useForm Hook

A custom React hook built with `useReducer` to manage complex form states, handle input changes, and implement validation logic efficiently.

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JAVASCRIPT

Accessibility-Friendly Focus Trap with useFocusTrap Hook

Implement an accessible focus trap within any React component (e.g., modals) to keep keyboard focus confined, enhancing user experience.

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Track Window Scroll Position with useScrollPosition Hook

A versatile React hook to efficiently track the scroll position of the window, enabling dynamic UI elements based on scrolling.

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Efficient Input Handling with useDebounce Hook

Optimize React component performance by debouncing state updates for user inputs like search fields, preventing excessive re-renders and API calls.

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JAVASCRIPT

Accessing Previous Prop or State Values with usePrevious Hook

Implement a custom React hook to easily access the previous value of any prop or state variable, useful for comparing changes in `useEffect` or other logic.

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JAVASCRIPT

Lazy Loading and Visibility Detection with useIntersectionObserver Hook

Efficiently detect when an element enters or exits the viewport using the `IntersectionObserver` API wrapped in a custom React hook for lazy loading images or infinite scrolling.

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Managing Async Operations and Data Fetching with useAsync Hook

Create a robust custom React hook to handle asynchronous operations, providing loading, error, and data states for cleaner and more reusable data fetching logic.

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JAVASCRIPT

Programmatic Modal/Toast Management

Learn how to programmatically create and manage Vue 3 components like modals or toasts without mounting them directly in the template, enabling global overlay control.

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JAVASCRIPT

Custom `v-model` with Multiple Properties

Extend Vue 3's `v-model` to bind multiple properties simultaneously on a custom input component, enabling more flexible and reusable custom form elements.

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JAVASCRIPT

Using Teleport for Global Overlays

Effectively use Vue 3's `<Teleport>` component to render content, such as modals, tooltips, or notifications, into a different part of the DOM tree, avoiding z-index and overflow issues.

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JAVASCRIPT

Global State Sharing with Provide/Inject

Implement flexible dependency injection in Vue 3 using `provide` and `inject` from the Composition API for sharing data or functions across deep component hierarchies, avoiding prop drilling.

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