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JAVASCRIPT Snippets.

Extract All URLs from Text

Discover how to use a JavaScript regex pattern to efficiently find and extract all complete URLs (http/https) embedded within a larger string of text.

Parse Semantic Version Strings

Use regex in JavaScript to accurately parse semantic version strings (e.g., '1.2.3-beta.4'), extracting major, minor, patch, and pre-release components.

Extract All Numeric Digits from Text

Discover how to extract all contiguous numeric digits from any string using JavaScript's `match` method with a global regular expression. Useful for data parsing and cleaning.

Normalize Whitespace and Trim String

Learn to clean up strings by replacing multiple spaces (including tabs and newlines) with a single space and removing leading/trailing whitespace using regular expressions in JavaScript.

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.