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JAVASCRIPT Snippets.

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

JAVASCRIPT

Programmatic Navigation with Vue Router in Vue 3

Learn how to programmatically navigate users to different routes within your Vue 3 application using the Vue Router's `router.push()` method.

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JAVASCRIPT

Reusable Composable for Asynchronous Data Fetching in Vue 3

Build a robust and reusable composable function in Vue 3 to encapsulate async data fetching logic, complete with loading, error, and data states.

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JAVASCRIPT

Focus an Input Field with useRef

Learn how to use the `useRef` hook in React to directly interact with DOM elements, such as programmatically focusing an input field on component mount or user action.

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JAVASCRIPT

Implement Global Theming with useContext

Discover how to manage global application themes efficiently using React's `useContext` hook, allowing components to consume theme data without prop drilling and manage state.

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JAVASCRIPT

Optimize Expensive Calculations with useMemo

Boost React app performance by memoizing the result of computationally intensive functions using the `useMemo` hook, preventing unnecessary re-calculations on re-renders.

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JAVASCRIPT

Custom Hook for Local Storage Persistence

Learn to build a reusable custom React hook, `useLocalStorage`, to effortlessly synchronize component state with the browser's local storage for persistent data management.

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JAVASCRIPT

Detect Click Outside an Element with useEffect

Implement a common UI pattern by using the `useEffect` hook to detect clicks outside a specific DOM element, useful for closing dropdowns, modals, or context menus automatically.

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JAVASCRIPT

Implement a Server-Side API Proxy for CORS & Security

Learn to set up a Node.js/Express proxy to securely fetch data from third-party APIs, bypass CORS restrictions, and protect sensitive API keys on the server.

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JAVASCRIPT

Implement Infinite Scroll Pagination for API Data

Create a seamless user experience by implementing infinite scroll pagination using JavaScript's Fetch API and Intersection Observer to load more data as users scroll.

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JAVASCRIPT

Fetch Data from GraphQL API using Apollo Client

Integrate GraphQL APIs into your React application using Apollo Client for efficient data fetching, caching, and state management, leveraging hooks for queries.

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JAVASCRIPT

Implement Content Security Policy (CSP) Header

Learn to implement a Content Security Policy (CSP) header to mitigate Cross-Site Scripting (XSS) and other code injection attacks by restricting resource loading.

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JAVASCRIPT

Prevent Cross-Site Scripting (XSS) with Output Encoding

Learn to prevent Cross-Site Scripting (XSS) vulnerabilities by properly encoding user-generated content before rendering it in HTML, safeguarding your web application.

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