Regular Expressions (RegEx) Tutorial #5 - Repeating Characters

Hey all, in this RegEx tutorial I'll show you how wecan easily repeat characters in a pattern, rather than write tem all out by hand.

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[collenedesilva]

thank you for this! i love the fact that you have connected every lesson by making a cliffhanger for every video. it makes my brain go "oh i wanna learn it right away lets go to the next"

[bigollie]

You make this incredibly easy to understand. I appreciate your time and effort my friend.

[Covidiousthenineteenth]

Please keep dropping content like this. You have opened my eyes to the programming world and have enabled me to become a programmer.

[bobokhonrajabov]

Thank you Net Ninja. It is very easy to understand. I watched other tutorial but it is too complicated even I dont understand What are they teaching. You are the best ever. I know you are hard working. every day tutorial without stopping. Thank You

[ASoftwareEngineer]

My feedback

Professional. Like a teacher in school. Ending the lesson with a small preview of next course then next course is a wrap up of the previous course. You really thought this through and many thanks for that.

[ranjitshah]

your videos is really understandable than others. thanks

[veronicaindimulim.]

now i have interest.. i was wondering where to start...you made this awesome and simple, before i make any notes...i can say something!

[mitchell]

I am making sure to pause with 5 seconds left in the videos to like, then add to my playlist. Almost every video.

[nithishkumarchelimilla]

hi sir could you please provide any explaination about below questions
Express the following in regular expressions :
a) All strings of digits with no repeated digit
b) All strings of letters that contain the five vowels in order

[GHOSTGAMER]

Hi, how to do this : The set of all strings with two consecutive repeated words. (for example,
“Humbert Humbert”, “the the”, …).

[theSUBVERSIVE]

What if instead of matching the first 8 and leaving the 9 out, I want 9 characters long to NOT pass? It has to have only between {5, 8}, if someone types 123456789, it will not pass.

[Soumyast]

so if we want atmost 5, shall we use {, 5}. Awesome tutorials man!!!

[rahulparshi]

Hey Ninja! can you explain "Switch to unit tests" tab in the Regex101 tool

[salv]

thanks this has been very uselful i tried t practise however mine doesnt seem to work correctly /[sp]alvatore{3}/ tell me what is wrong with my expression