Regular expressions (regex) are a powerful tool for pattern matching and text manipulation in JavaScript. They allow developers to search, replace, and manipulate strings with precision and efficiency. Understanding how to work with regular expressions can greatly enhance your ability to handle and process text data. In this article, we’ll explore the basics of regular expressions in JavaScript, dive into common patterns and methods, and provide practical examples to illustrate their usage.

JavaScript’s built-in objects provide a powerful set of tools that can greatly enhance your programming capabilities. These objects offer a wide range of functionalities, from manipulating data structures to performing mathematical calculations and handling dates and times. Understanding these built-in objects is essential for writing efficient and effective JavaScript code. In this article, we’ll explore the most commonly used JavaScript built-in objects, with detailed explanations and examples to help you make the most of them.