Hi, I'm Jeffrey. I'm the creator of Laracasts and spend most of my days building the site and thinking of new ways to teach confusing concepts. I live in Orlando, Florida with my wife and two kids.
About This Episode
Published on Nov 11th, 2015
Often, you'll find yourself in the position of needing to match a set of characters only if they are proceeded or preceded by another sequence. When writing regular expressions, we can use lookaheads and lookbehinds to allow for this.