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JAVASCRIPT Snippets.

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.

Implement Essential HTTP Security Headers with Node.js Helmet.js

Strengthen your Node.js Express application's security by adding critical HTTP headers like CSP, HSTS, and X-Frame-Options using the Helmet.js middleware.

Configure Secure and HttpOnly Cookies in JavaScript (Server-Side)

Learn to set essential `HttpOnly`, `Secure`, and `SameSite` attributes for cookies in Node.js, bolstering web application security against XSS and CSRF attacks.

Safely Sanitize User-Generated HTML to Prevent XSS Attacks with DOMPurify

Protect your web application from Cross-Site Scripting (XSS) by securely sanitizing user-provided HTML content on the client-side using the robust DOMPurify library.

Optimize React Input with a Custom `useDebounce` Hook

Implement a `useDebounce` hook in React to delay state updates or function calls, significantly improving performance for search inputs and frequent events.

Track Previous React Prop or State with `usePrevious` Hook

Create a custom `usePrevious` React hook to easily access the prior value of a prop or state variable, useful for comparing changes in `useEffect`.