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JAVASCRIPT Snippets.

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

JAVASCRIPT

Debouncing User Input for API Search Requests (Vanilla JS)

Implement a vanilla JavaScript debounce function to limit API calls during rapid user input, optimizing search functionality and reducing server load.

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JAVASCRIPT

Simplify Form Management with useForm Hook

A custom React hook for managing form state, input changes, and handling submissions with ease, reducing boilerplate in your form components.

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Manage Timed Actions with useInterval Hook

A safe and declarative React hook for handling `setInterval` logic, ensuring intervals are cleared properly and preventing common closure issues.

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Implementing a usePrevious Custom Hook in React

Learn to create a `usePrevious` React hook to easily access a prop or state's previous value, essential for comparing changes and implementing derived logic.

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Creating a useDebounce Custom Hook for React Inputs

Optimize input handling in React with a `useDebounce` hook. Delay state updates until user input pauses, reducing unnecessary re-renders and API calls.

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JAVASCRIPT

Building a useEventListener Custom Hook for React

Simplify event listener management in React components with `useEventListener`. Attach and clean up event listeners efficiently for any DOM element or window.

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Creating useIntersectionObserver for Lazy Loading and Visibility Detection

Implement lazy loading, infinite scroll, or element visibility detection in React with a custom `useIntersectionObserver` hook for optimal performance.

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Debugging React Re-renders with useWhyDidYouUpdate Hook

Identify and fix unnecessary React component re-renders using a custom `useWhyDidYouUpdate` hook, helping optimize performance and debugging.

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Implementing API Rate Limiting with Express.js Middleware

Protect Node.js API endpoints from abuse, brute-force attacks, and DDoS. Implement effective rate limiting using `express-rate-limit` middleware, ensuring stable service availability and preventing server overload.

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JAVASCRIPT

HTML Sanitization to Prevent XSS Attacks in JavaScript

Implement robust HTML sanitization with DOMPurify in JavaScript. Effectively prevent Cross-Site Scripting (XSS) attacks in user-generated content, ensuring the secure display of dynamic data.

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JAVASCRIPT

Persisting Reactive State with `useLocalStorage` Composable

Learn to create a Vue 3 Composition API composable for easily persisting and retrieving reactive state to and from browser local storage, enhancing data persistence.

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Programmatic Navigation and Route Parameters with Vue Router

Discover how to programmatically navigate in Vue 3 applications using Vue Router's `useRouter` and `push` method, including passing route parameters and query strings.

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