Learn the fundamentals of Regular Expressions (Regex) in this comprehensive 23-minute tutorial. Explore essential concepts such as character sets, negated sets, ranges, flags, special characters, and quantifiers. Discover how to match specific patterns, use lookaheads, and apply alternation. Practice with real-world examples and gain valuable insights into selecting whitespace. Master the art of pattern matching across various programming languages, including JavaScript, Python, Java, and C++. Enhance your string manipulation skills and streamline your coding process with this in-depth guide to Regex basics and advanced techniques.