Learn Regular Expressions In 20 Minutes

Thanks what an amazing tutorial with clear concise explanations, truly great stuff.

this video is 4 years old and still very useful .. at least for me rs thank you

please dont eat me

Your video made regular exp much easier to understand, I was struggling with it a lot and tried to avoid it as much as possible.
Thanks a lot.

genius

look behind:
many (possibly all?) implementations limit that portion of RE to those that evaluate to fixed width strings (e.g. no quantifiers or alternatives that may be of possibly varying lengths)
many highly recommend generally avoiding look behind, because they can quickly become highly counter-intuitive.

I am so very grateful for this video. I was literally able to do all my homework on Regexp regular expressions in MySQL after watching it. Thanks man.
Du hast mir den Arsch gerettet Alter.

thanks!

Thank you so much! Very helpful :)

Thanks

Who else got stuck in a freecodecamp challenge?

Thanks for the gift

This is an excellent tutorial

wow, that was amazing.

Best regular expression . | .

Great man, one of the finest video I've seen on regex.

Perfect. Genius. I could take so many things from it. Many thanks.

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Amazing video, mate. even started doing them myself near the end with near perfection. Good teaching, G

Thank you. This is a great video.

/the/g // g for global (match all)
/the/gi // i for case insensitive (will match all the & The)
/e+/g // + means 1 or more
/ea?/g // ? means optional ( 0 or 1 ) of a
/ea*/g // * means (0 or more) of a
/.e/g // matches any character except new line
/e./g // matches any character except new line
/\./g // find the period (.)
/.\./g // any character before period

/\w/g // match any word character (every single letters)
/\W/g // anything not character (exmp: whitespace,periods)
/\s/g // anything white space
/\S/g // anything except whitespace

/\w{4}/g // match any word of 4 characters
/\w{4,6}/g // match any word between 4 to 6 characters

/[fc]at/g // anything starts with f or c and ends with at (exmp: fat,cat)
/[a-z]/g // range of all lowercase characters
/[a-zA-z]/g // range of all lower and uppercase characters
/[0-9]/ // range of numbers
/[a-f]/ // anything between a to f

/(t|T)he/g // t or T, ends with he (exmp: the,The)
/(r|t){2,3}/g // r or t, 2 to 3 times (exmp: rr,tt,rt,tr,rrr,ttt,rtr..)
/(re){2,3}/g // example: rere,rerere (2 to 3times)

/^T/g // match beginning of the line
/t$/g // match the end of the line

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gpomg a little crazy with that last example there...

Can you activate English subtitles?

how about this "/^[Doldrums-\s]*$/i"? i only want to get one value each from the "[]"

Nice work and precise.

How many hard C sounds in the word ESCAPE?

I forgot everything during the ending ad!

Bro your content Very clear but Why do you not attach the subtitles. It's like watching a movie without the sound.

Thanks for all your tutorials. You do a great service to all.

Thank you! Creating complex regEx is still a mistery for, but the page you showed can really help. For now I will create a few simple rules and combine them together in my code.

Thank you, very clear and concise explanation! I was just doing a regex challenge on Codewars and your video helped me find my own solution and understand the highest voted solution :)

Ahh, understandable mistake but its actually pronounced rejular expression

Thank you so much! I have been meaning to learn regex for years but all the weird characters looked so daunting I just kept putting it off. This video made it super easy and simple to understand! I have been having a lot of fun playing around with different regular expressions practicing them which I never thought I would be able to do. Thank you!

Bro looks at me with rizz😈😈😈😈

Boy this video was amazing really well explained and thanks a lot for that website. CAN'T THANK YOU ENOUGH!

Does this guy ever blink?

bruh wtf how handsome u r lol

why didn't you make your videos translated in other languages
why??

Using the look ahead/look behind. How would I say only match if the character after '/' is '?'

Very nice video. Thanks 🙏

Im building regex exactly for a phone number. So I was positively surprised at the end of the video :)

loved it

This is so perfect and smooth, thank you.

[ab] is equivalent to (a|b) right?

more like learn reggae in 20 mins.good content man😂