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JAVASCRIPT Snippets.

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

JAVASCRIPT

Centralized API Error Handling and Logging in Node.js

Implement a robust, centralized error handling and logging mechanism for external API calls in a Node.js application to improve debugging and reliability.

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JAVASCRIPT

Consuming Paginated API Data with JavaScript

Implement JavaScript logic to fetch and display data from paginated APIs, handling 'next' page tokens or offset/limit parameters effectively.

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JAVASCRIPT

Building a Simple Reactive Global State Store in Vue 3

Implement a basic global state management solution in Vue 3 using the reactivity API (`reactive`) for sharing data across components without a dedicated library.

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Reusable Vue 3 Composable for API Data Fetching

Create a custom Vue 3 composable (`useFetch`) to handle asynchronous data fetching, including loading, error, and data states, making API calls reusable and organized.

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Programmatic Navigation and Route Guards with Vue Router 4

Learn to control navigation programmatically using `router.push()` and implement global `beforeEach` navigation guards in Vue Router 4 for authentication or page access control.

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Managing Modals and Overlays with Vue 3 Teleport

Use Vue 3's <Teleport> component to render modal windows or notifications outside the component's DOM hierarchy, ensuring proper layering and avoiding CSS z-index issues.

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Efficiently Managing Dynamic Components with keep-alive

Learn how to use Vue 3's <keep-alive> component to cache inactive dynamic components, preserving their state and avoiding re-renders for improved performance.

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Reusable useEventListener Hook

Create a custom React hook `useEventListener` to easily attach and clean up event listeners to the window, document, or a specific DOM element, ensuring no memory leaks.

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Optimizing Expensive Calculations with useMemo

Optimize React component performance by using `useMemo` to memoize the results of expensive calculations, preventing re-execution on every render when dependencies haven't changed.

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Memoizing Callback Functions with useCallback

Improve React component performance by using `useCallback` to memoize function references, preventing unnecessary re-renders of child components that depend on those functions.

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JAVASCRIPT

Storing Mutable Values with useRef (Non-DOM)

Utilize `useRef` in React to store mutable values that persist across component renders without triggering re-renders, ideal for managing non-DOM data like timer IDs or previous states.

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JAVASCRIPT

Efficiently Adding Multiple DOM Elements with DocumentFragment

Learn to create and append multiple new DOM elements efficiently using DocumentFragment to minimize reflows and repaints, improving web performance.

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