Premium
JAVASCRIPT Snippets.

Extracting Hex Color Codes from Text

A regex pattern to efficiently find and extract standard 3-digit and 6-digit hexadecimal color codes (e.g., #FFF, #AABBCC) from any string.

Sanitizing Input by Removing Non-Alphanumeric Characters

Clean user input by removing all characters that are not letters, numbers, or spaces, useful for basic text sanitization and data cleaning processes.

Server-Side API Rate Limiting with `express-rate-limit`

Implement robust server-side rate limiting in Express.js applications to prevent brute-force attacks and abuse, ensuring API stability and fair resource usage.

Mitigating Regular Expression Denial of Service (ReDoS) Attacks

Learn to identify and prevent Regular Expression Denial of Service (ReDoS) vulnerabilities by crafting efficient and secure regex patterns in JavaScript.

Implementing a Strict Content Security Policy (CSP) with Helmet.js

Secure your web application against XSS, clickjacking, and other injection attacks by configuring a robust Content Security Policy using Helmet.js middleware in Express.

Secure Cookie Management in Express.js

Learn to secure your application's cookies by setting HttpOnly, Secure, and SameSite attributes in Express.js, protecting against XSS and CSRF attacks.

Robust Password Hashing with bcrypt in Node.js

Secure user passwords by implementing strong, one-way hashing with the bcrypt library in Node.js, preventing plaintext storage and rainbow table attacks.

Server-Side Input Validation with Joi in Node.js

Ensure data integrity and prevent various vulnerabilities by implementing comprehensive server-side input validation using the Joi library for Node.js applications.

Secure Environment Variable Management with Dotenv in Node.js

Safely manage sensitive configuration data like API keys and database credentials using environment variables with the dotenv library in Node.js.

Global State Management with Pinia in Vue 3

Learn how to effectively manage global application state in Vue 3 using Pinia, Vue's lightweight and intuitive state management library, ensuring reactive data flows across components.

Creating a Reusable Form Validation Composable

Build a custom Vue 3 composable for efficient and reusable form validation logic, simplifying error handling and input feedback across multiple forms in your application.

Implementing Custom Directives in Vue 3

Extend Vue 3's capabilities by creating custom directives for low-level DOM manipulation, adding reusable and declarative behavior directly to your HTML elements.