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JAVASCRIPT Snippets.

Extract All Alphanumeric Words from Text

Learn to extract all sequences of alphanumeric characters (words) from a given text string using JavaScript's `match` method and regular expressions. Ideal for text analysis and tokenization.

Implement Robust API Rate Limiting in Node.js

Prevent abuse and improve API stability by implementing rate limiting in your Node.js Express application using middleware to restrict request frequency.

Configure Secure and HttpOnly Cookies in Node.js Express

Enhance web application security by setting HttpOnly and Secure flags for cookies in Node.js Express, mitigating XSS risks and ensuring cookies are sent only over HTTPS.

Prevent Directory Traversal Attacks in Node.js File Access

Secure your Node.js application from directory traversal vulnerabilities by sanitizing user-controlled file paths before accessing the file system, preventing unauthorized file access.

Creating Reusable Logic with Vue 3 Composables

Discover how to build and integrate composables in Vue 3's Composition API to encapsulate and reuse reactive stateful logic across multiple components.

Validate and Extract Hex Color Codes

A JavaScript snippet to validate if a string is a valid 3-digit or 6-digit hexadecimal color code and extract it, useful for CSS and UI checks.

Extract All Hashtags from Text

A JavaScript function to efficiently find and extract all unique hashtags (e.g., #topic, #jsdev) from a given string, commonly used for social media features.

Extract Specific Query Parameter from URL

A JavaScript function to efficiently parse a specific query parameter's value from a given URL string using regular expressions.

Fetching Data from a REST API with Async/Await in JavaScript

Learn how to asynchronously fetch JSON data from a REST API using the modern Fetch API with async/await syntax in JavaScript, including basic error handling.

Posting Form Data (Multi-part) to an API in JavaScript

Discover how to post HTML form data, including file uploads, to a REST API using JavaScript's FormData object and the Fetch API for multi-part/form-data requests.

JavaScript Function to Fetch All Pages from a Paginated API

Learn how to iteratively fetch all available data from a REST API that uses cursor-based or offset-based pagination by repeatedly making requests until no more pages are found.

Authenticating API Requests with Bearer Tokens in JavaScript

Securely make authenticated API requests by including a Bearer token in the Authorization header of your JavaScript Fetch API calls, ensuring access to protected endpoints.