Premium
JAVASCRIPT Snippets.

Enforcing HTTPS with HTTP Strict Transport Security (HSTS) in Node.js

Implement HTTP Strict Transport Security (HSTS) in your Node.js Express application to force clients to use HTTPS, enhancing security against downgrade attacks.

Securely Hashing Passwords with Argon2 in Node.js

Learn how to securely hash and verify user passwords using the Argon2 algorithm in Node.js, a modern and recommended approach for credential storage.

Preventing Clickjacking Attacks with X-Frame-Options in Node.js

Safeguard your web application from clickjacking attacks by setting the X-Frame-Options header using the Helmet middleware in Node.js Express.

Implementing API Rate Limiting in Node.js Express Applications

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

Extracting All URLs (HTTP/HTTPS) from a String

Discover how to efficiently extract all complete HTTP or HTTPS URLs present within a given text string using a powerful regular expression in JavaScript.

Removing HTML Tags from a String (Basic Sanitization)

Learn to strip HTML tags from user-provided strings using a simple regular expression in JavaScript, useful for basic content cleaning.

Validating Strong Passwords with Multiple Criteria

Implement robust password validation using a single regex that checks for minimum length, uppercase, lowercase, numbers, and special characters.

Validating North American Phone Numbers (NPA-NXX-XXXX)

Validate common North American phone number formats (e.g., (123) 456-7890, 123-456-7890) using a flexible regex in JavaScript.

Creating a Simple Vue 3 Composable for Toggle Logic

Learn to create a basic, reusable Vue 3 composable (`useToggle`) for managing boolean states, simplifying component logic and promoting code organization.

Empowering Component Reusability with Vue 3 Scoped Slots

Utilize Vue 3 scoped slots to pass data from a child component to its parent's slot content, enabling highly flexible and customizable component structures.

Adding Enter/Leave Transitions to Vue 3 Elements

Implement smooth enter and leave animations for conditionally rendered elements in Vue 3 using the built-in `<Transition>` component and CSS transitions.

Implementing OAuth 2.0 Client Credentials Flow for API Access

Securely access APIs from your server using the OAuth 2.0 Client Credentials Grant, ideal for server-to-server communication without user interaction.