Learn Regular Expressions In 20 Minutes



Having the ability to search through text, validate text, and replace text using an advanced set of rules is exactly what Regex is for. Unfortunately, people fail to ever truly learn Regex. In this video I will be teaching you everything you need to know about Regex. We will talk about what Regex is, what Regex flags are, how to do simple and complex matches, how to handle look aheads and look behinds, and much more. Then at the end of the video I will show you how to use Regex to validate and format a phone number in various different formats.

📚 Materials/References:

Regexr Website:

🧠 Concepts Covered:

– What Regex is
– How to use Regex for simple matching
– How to match repeating patterns
– What Regex flags are
– Look aheads and look behinds
– Regex special characters
– Validation with Regex
– Find and replace with Regex

🌎 Find Me Here:

My Courses:
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CodePen:

#Regex #WDS #RegularExpression

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39 thoughts on “Learn Regular Expressions In 20 Minutes”
  1. Amazing video my friend, so much value. What I would like to add, is that the viewer needs to have 90% grasp on each one of the concept you explained here or else this summary will just go over the viewer's head. This video helped me solidify/reinforce/validate what I already knew, which is extremely useful. Made me aware of things that I don't know yet. And helped me see the big picture. Which is encouraging/motivating because I can see the light at the end of the tunnel. However I only go all this value, because I have spend around 10 hours trying to understand Regular Expressions on Free Code Academy (and you make great content). Thank you so much for the Amazing content.

  2. Brilliant tutorial about one of the hardest topic of Javascript for beginners (or even experienced ones).
    I come to complete my certification task at FreeCodeCamp, and was not disappointed (rather overjoyed).

  3. Bro, where have you been all this time?🤣 I have been struggling with regex for quite some time now and now I found your video and finally understood the damn thing. Thanks a lot!

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