Premium
JAVASCRIPT Snippets.

Extract Hashtags and User Mentions from Text

Quickly extract all #hashtags and @mentions from social media-like text using efficient JavaScript regular expressions.

Attach and Cleanup Event Listeners with `useEventListener`

Discover how to create a robust `useEventListener` React hook to easily attach global event listeners to the window, document, or a DOM element with automatic cleanup.

Implement Lazy Loading & Animations with `useIntersectionObserver`

Master the `useIntersectionObserver` React hook to detect when elements enter or exit the viewport, enabling lazy loading, infinite scrolling, and dynamic animations.

Robust Data Fetching with Cancellation using React's `useFetch` Hook

Create a versatile `useFetch` React hook for handling asynchronous data fetching, including loading and error states, and crucial request cancellation on component unmount.

Validate Strong Passwords with Specific Requirements

Implement a JavaScript function with a regular expression to validate strong passwords, requiring uppercase, lowercase, numbers, and special characters.

Extract All Numeric Values from a String

Learn how to use a regular expression in JavaScript to efficiently extract all numeric sequences (integers or decimals) from any given text string.

Remove Basic HTML Tags from a String

Discover a simple JavaScript regular expression to strip out common HTML tags from a string, useful for basic content sanitization or display purposes.

Rendering Modals or Overlays with Vue 3 Teleport

Master Vue 3's Teleport feature to render component content into a different part of the DOM, perfect for accessible modals, tooltips, and global notifications.

Animating Element Transitions with Vue 3 Transition Component

Add elegant entry and exit animations to elements in your Vue 3 application using the built-in `<transition>` component and CSS transitions for a dynamic user experience.

Dynamic Component Loading and Caching with Vue 3 `keep-alive`

Optimize performance and user experience in Vue 3 by dynamically loading components and caching their state using the `<keep-alive>` component, preventing re-renders.

Robust Server-Side Input Validation with Express-Validator

Implement comprehensive server-side input validation for API endpoints in Node.js Express using `express-validator` to prevent malicious data and ensure data integrity.

Implement API Rate Limiting in Node.js Express

Protect your Node.js Express API from brute-force attacks and abuse by implementing effective rate limiting using the `express-rate-limit` middleware.