JavaScript Cardio [Session 1] - Reversals, FizzBuzz, MaxChar

Intermediate whiteboard style JavaScript challenges and solutions to sharpen your skills and prepare you for interviews.

In this video we will do 6 challenges...

1. String Reversal
2. Validate Palindromes
3. Integer Reversal
4. Capitalize Letters
5. Find The Max Character
6. FizzBuzz Challenge

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CODE: Feel free to make a pull request and add other solutions

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[TraversyMedia]

If anyone has any interesting solutions, feel free to make a pull request to the repo in the description. This can be a community thing. Just keep the files neat and make sure it is not something that is already there. Same with any other videos/challenges we do in this series.

[hassankaafiomar]

Thanks Brad
You're my hero man
Giving all these tutorials without paying it wooow guys support this guy he's a LEGEND

[DivineJesusPrayers]

Brad, you are truly a blessing to the learning community in this channel of yours. Your passion to teach and see your students succeed is unprecedented. You give above and beyond what one would normally term as 'free content'. I love this content, the name is just awesome, the tutorial is pure gold! Please release more of such series in future as time permits you. From the deepest recess of my heart, I am most grateful sir.

[michaeltruss]

Brad:
Thank you for providing young developers with these tutorials. Your method of teaching is very precise and knowledgeable. I have learned so much watching your videos on coding and web development. Again, thank you for all that you do.

[krittatwizted]

This!! This is what I needed to sharpen the skills I have been learning!

[willc]

Brad - Your stuff is fantastic. You are the TOP, most knowledgeable programmer on the internet - Bar none. I'm finishing up your PHP - Front to Back series right now, going to do your PHP & Stripe API project - bought your MERN stack course on Udemy. I'm your new #1 fan. Of anyone I've ever seen code, you know your shit down to the core. Thanks for your videos man, you rock!!

[brianlmosley]

We do not deserve this! Greatest cod by Chanel out!!

Thanks Brad!

[DevBranch]

I’m currently in a coding boot camp. We do coding exercises every morning and I suck at them. I’ve been looking everywhere, reading online trying to figure it out. These JavaScript cardio sessions are exactly what I’ve been looking for. Really appreciate this Brad.

[MrRuchir]

JavaScript Cardio ... What a innovative heading ...
Thinking of doing cardio for many days but never get motivated, But I really want to do this cardio
Please continue with this series....

[davehoffman]

I love the idea of doing challenges. I love following your channel Brad! Keep the good content coming.

[prabhjotsingh]

Thanks Brad for the practice sessions. Please keep making videos like these.

Reverse the string with Recursion
function revStr(str){
if(str.length ===0){
return ""
}
else{
return str[str.length - 1] + revStr(str.slice(0, str.length - 1))
}
}
let str = "hello"
console.log(revStr(str))

[abdallahrizk]

dude you are the best. I used to be a student in a bachelor of software engineering for 3 years and its waste of time if I only knew you before.

For reversing strings, here is a funny while loop, which totally works:

function reverseString(str) {
let i = str.length, output = '';
while (i --> 0) { // LOL
output += str[i];
}
return output;
}

[MistaT]

I will be applying for jobs next semester (last) and I am very insecure about on-the-spot problem solving. This is insane! thanks traversy <3! you absolute legend. just what i was looking for.

[continental_drift]

It's always good to see other peoples solutions to problems, if they are different then you learn something. Sometimes looking at other peoples solutions can give you insight into how to make your own solutions better.

[ianchin]

You are the real deal, giving the audience the information they need to succeed

[marlonrettis]

He is so elegant in his explanations. God bless you Brad! ...and thank you!

[mniqcsn]

Bro, I've been praying for you to do this for so long. I've even mentioned it in the comments, and I just now saw that you've done. Badass. Thank you, so much.

[sida]

I don't get it. Who are those 14 dislikes :-?
This guy is one of a kind teacher in my opinion. He's an amazing code with a talent that not everyone has and that is explaining and teaching things the easy way

Thank you so much for you amazing videos

[mniqcsn]

I've studied this well, and I want to say, I'm a teacher, and either you put a shit-ton of thought into this video, or you're just a naturally great teacher. By the way, from now on, I'm calling my office "The Javacrypt".