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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.

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.

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.

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.

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.

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.

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.

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.

Implementing a Global Event Bus with `mitt` in Vue 3

Learn how to set up a lightweight global event bus using the `mitt` library in Vue 3 Composition API to facilitate communication between unrelated components without prop drilling.

Custom `v-model` for Reusable Vue 3 Components

Learn to implement a custom `v-model` on your own Vue 3 components using `defineModel` (or `modelValue` prop and `update:modelValue` event for older setups), creating intuitive two-way data binding.

Dynamic Component Rendering with `<component :is="componentName">`

Learn how to dynamically render different components in Vue 3 based on reactive data using the special `<component :is="...">` element, enabling flexible UI structures.

Validate Email Addresses

Learn to validate email addresses in web forms using a comprehensive regular expression in JavaScript, ensuring correct format and preventing common errors.