JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - What Is Reg Ex and How to Use it in JavaScript

This video tutorial introduces regular expressions (regex) and their use in JavaScript for pattern matching and string manipulation. It covers the basics of regex, including grouping and character sets, and provides practical examples of how to use regex for pattern matching and replacing in strings. The tutorial concludes with a discussion on the importance of regex in coding interviews and prepares viewers for the next lesson.

What are regular expressions and how are they used in JavaScript?

Explain the concept of grouping in regular expressions.

What is the difference between a grouping and a character set in regex?

How can you create a character range in regular expressions?

Describe how to use regex for pattern matching and replacing in strings.

What is the significance of the 'g' flag in regular expressions?

How can regular expressions be useful in coding interviews?