Binary Search Algorithm in 100 Seconds

Binary Search is an algorithm that can find the index of an element in a sorted array data structure. You've likely used Binary Search it in everyday life without even realizing it.
#compsci #programming #100SecondsOfCode
🔗 Resources
Binary Search en.wikipedia.org/wiki/Binary_...
Big-O in 100 Seconds • Big-O Notation in 100 ...
Recursion in 100 seconds • Recursion in 100 Seconds
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🔖 Topics Covered
- Binary Search in JavaScript
- How does binary search work?
- When was binary search first used?
- How code recursive binary search?
- Big-O Time complexity of binary search

[@mr.anderson5077]

Hey Jeff, Please cover all the topics from data structures and algorithm. Thanks

[@Ma1ne2]

Yes plz!

[@SheikhAmeen]

Yesss! Like this comment, get to the top!

[@auroreis2308]

Yessssss fully agree

[@flyte9844]

YES PLEASE :D

[@gopalkmrr]

Yes

[@discarded1669]

Do a series of these different Algorithms.. Helps immensely in quick revising them for tests..

[@WTHBrou]

Yes, please. I've been having a hard time implementing variations of DFS and BFS graph algos.

[@marcelsantee1809]

@@WTHBrou I keep failing hard at graphs interview, I second that

[@Ruf4eg]

Yes, please.

[@6_nikki_9]

MOAR ALGORITM PLS

[@JettoDz]

Yes. A series, then put them in a playlist. CS 101. You'll get tons of students into it. I can already forsee teachers using Fireship videos as introductions for every (available) algorithm.

[@taylorcarroll6487]

More algorithms please, I was just looking this up yesterday and found this video explains it more clearly than others because you clearly explain WHY we would use this rather than just parroting how to do it out of textbook.

[@m1rac1e]

If you're a CS student/beginner learning data structures & algos for the first time, I cannot recommend "A common-sense guide to data structures & algorithms" enough. It's a textbook that is focused on explaining the base concepts in plain English to a beginner. It goes in-depth without overwhelming you. Provides exercises, examples, & diagrams. Book saved my life freshman year of CS.

[@shreehari2589]

@@m1rac1e bro i am gonna be in freshmen year in August, can you please give me the link to download it.

[@nateo7045]

I would like more algorithms because I like algorithms, but this is a hardly revolutionary video. Here's to generic praise 😂

[@m1rac1e]

@@shreehari2589 look up textbook piracy, can't link it because youtube filter blocks me. gotta use ur brain.

[@rajikkali2381]

@@shreehari2589 try z-lib

[@StuartLoria]

This is amazing. I would call the series “demystifying Algorythms”, or “computer archeology”, or “understand the technical interview”

[@arossfelder]

That's a great idea you got here ...

[@123456crapface]

aaaand thats why no one asked you

[@freakymidget]

A playlist of common interview questions would be a godsend

[@sauravbv]

I finished my engineering course long back, but would pay you to watch data structures and algorithms explained in such a nice way!

[@koolamusic_]

bru

[@Chiefsosa17]

Well, I knew binary search already. But this dictionary anology was just amazing.

[@Aresous]

i think cs50 does this

[@DodaGarcia]

This was so awesome, as a self-taught developer I never got to learn most theoretical things like this, and it definitely has an effect on my problem solving

[@wajidnv]

What a miracle. My computer science teacher taught us linear search today. And will teach binary search tomorrow. I got it easy 😊

[@18.j]

Love to see more algorithms videos! 👏🏻

[@Chapali9a]

Holy moly! Ive never seen anyone explain it as simple as this. Please do more data structures and algorithms stuff. Thank you

[@mridulbarman027]

Need many many more videos please ❣️ Sir taught in class many times but never able to explain like this. Thank you ❤️

[@mephi5t0]

The code shown actually have a bug. When it was written back in the day it was not a problem. Now of your search array has billion elements the sum of integers may overflow and become negative. The new proper way to avoid going out of bounds of the integer to calculate mid point is int mid = low + ((high - low) / 2); This was a bug in Java for 9 years

[@Dr.Schnizzle]

This is actually really important. I’ve gotten dinged for this.

[@AkaiKnight]

To be fair, he did say the code was in JavaScript. But this is still an important insight you’re giving

[@jandresshade]

No only that, this kind of iteration is really limited in JS (in fairnes JS is not a declarative lenguaje and has the while loop for this kind of problems), you going to get a "Maximum call stack size exceeded error" before getting this bug.

[@svenniepennie4237]

@@jandresshade Why would you get a maximum call stack size exceeded error?

[@vectoralphaAI]

I don't get it. Can you explain?

[@JohnSnow-gi7iv]

We need more like these algorithms

[@conceptioned]

More algorithms in under 100 seconds like these, please! This was explained way more succinctly than a regular class would have done.

[@alichamas63]

I really love these videos. My favourite dev content on KZbin. Perfect balance of knowledge, time, humour, and impact.

[@heathenmonk1249]

Yes, continue with more algorithms, this was so easy to understand, thanks!

[@chiroyce]

With Jeff's videos we can speedrun learning!

[@sirgrem2988]

Man, you've come at a perfect timing for this one! Would love to see more about algorithms.

[@normankidhoma9897]

Wow. The simplicity is amazing. Would love more of these. Thanks

[@abdousidiya2130]

I’d appreciate if you make a series about data structure and algorithms. Your explanation is really helpful! Thanks:)

[@jesusrojas5262]

This is the first time that I truly understood the Binary Search algorithm and how to implement it using recursion in just 2 minutes. Awesome!

[@jewpcabra666]

love it! these are great for practicing for coding interviews - especially if you cover more complex topics that are hard to visualize (dynamic programming, fast/slow pointers, loops etc)

[@aschmelyun]

Definitely keep making these. I'm a full-stack developer, but missed out on a lot of the 'low-level' knowledge like algorithm design and Big O notation. This video was incredible!

[@alansaldivares]

This is pure gold, and yes, the crowd cries out desperately for more videos of algorithms and data structures. Keep it up man, thanks!

[@y404]

hey this was really informative and interesting to watch all while being entertaining because of how good your animations are. please keep doing more of these 👍

[@niteshsethi4091]

Algorithm holds a massive part in today's technical world. Apart from dev tools like react, redux, and all including devops, algorithm is something we all get to ask even in interview. I appreciate the work you have done yet and doing continuously to get us know what that technology actually means and when should we have it in use. Other data structures and algorithms are welcome from my side. We all need it.

[@ericpeck7858]

Great video! We would love to see videos like this for all sorts of algorithms. Even compare and contrast different algorithms(space & time complexity, etc).

[@pedgarcia]

Short and sweet (as usual). Please, keep them coming!

[@colinzollars2017]

Please do more Algorithms! I'm practicing Leetcode so this video is incredibly helpful in explanation. Time Complexities are a harder concept for me so this helped explain that a little more.

[@elijahmandeville8475]

This made more sense to me than when I learned about it during a 2 hour lecture. Would love to see algorithms more

[@januszwitkowski878]

That's a really cool format for algorithms showcases! Keep it up!

[@pyanimate1493]

Hi Fireship, I am learning data structures and algorithms. Please continue. I actually like the way you simplify things.

[@reandov]

Hey Jeff, great video! How about a new series where you show most known algorithms in 100 seconds? That would be great!

[@Lee14G]

Beautiful! I want more videos like this! Common algorithms explained and implemented.

[@kevinfriedman6766]

Please continue to release these videos. Algos/DS are always top of mind for most folks interview prep, amazing stuff as always.

[@dadidus1]

I would use the .indexOf() function instead of a for loop

[@M9625Rahul]

Thats Language feature not available in all languages and you aren't allowed to do that

[@erfanexp]

I wish I didn't know how binary search works so that I could enjoy this video more

[@emilianogarcialopez3591]

Love this series on algorithms! You should do more

[@bigmackdombles6348]

You are a genius at teaching, I will watch and use whatever content you make, including more algorithm vids.

[@lightning_11]

Who's gonna tell him that these videos are all 150 seconds long?

[@shreym03]

This is a good video. But I see one flaw in it. You haven't explained the fact that binary searches work only in an environment where everything is sorted

[@jef777]

0:39 "given a sorted array"

[@kolegowiewtrasie4054]

in a 100s video every word counts

[@mohamedsaleh5970]

Greate idea to make algorithms series. keep doing it and thanks for your wonderful content and simplified description.

[@yousefelsayed4203]

would love more videos about algorithms like this video concise and to the point and with an example to understand. Keep it going

[@krishnasahu8553]

First

[@funwithalbi2425]

didn’t ask + don’t care + ratio

[@negaaa5080]

Ratio

[@Fireship]

🥇 Gold!

[@JoseMoreno-uc2qz]

What took my intro to data structures/algorithms professor weeks to each you succinctly explained it in less than 3 minutes. I appreciate your work a lot!

[@DesignByFaizi]

Amazing video. I would love to see more algorithms explained like this.

[@azzazkhansiddiqui]

Love your short videos and if you explain data structures and algorithms like this it would help me a lot in my university!

[@shaahkars]

This was brilliant. Please do make more videos on algorithms. Cheers!

[@roulzhq]

Nice video! I like this more than going over really complex subjects in 100 seconds because you can barely scratch the surface there. This now really explained a lot of the approach already. Question by the way: where do you get your emoji pictures like the pointing hand from?

[@miroslavblagoev5887]

Yesss! love the algorithm explanation! would love to see more like these

[@tapiwakundishora6195]

Yes please do more algorithm videos🙏🏾; great video btw!!

[@curiosity6969]

Very informative! Need more videos on algorithms!!

[@RandomDude889]

I absolutely need more algorithm oriented content this is fantastic.

[@sighbru]

Love it. Please more algorithms videos!

[@badreddineinfo]

hey Jeff this is a great video 👍🏼, make videos like this about algorithms in the future

[@typicalgamer9064]

Videos about popular and lesser known algorithms would be great content. Would watch them all!

[@sava-lakicevic]

Absolutely want to see more. Keep them coming.

[@GrahamBillington]

This was such a great refresher for me man thanks a lot 👊🏼

[@TomDoesTech]

This is awesome! More data structures and algo videos please :)

[@arkhamian7586]

It would be great if you could cover the most common algorithm and data structures topics that are asked in interviews. Also, topics like solid principles, deadlocking, etc. Your videos make a great refresher for any concept without being boring. In any case, thank you for the great work!

[@max0223]

Amazing explanation for a common problem that is very helpful. Please do more of this!

[@iamrajthomas]

Loved these 100 seconds. I happen to find my best 100 seconds for today. Thanks Jeff. 💚

[@roy_2470]

I know this is a relatively old video, but I love these algorithm videos, please return with more of these in depth algorithm videos if you feel like it:)

[@brandonsayring]

This is the best explanation of binary search algorithms I've seen.

[@LalanDesai]

Make a whole playlist like 'Algorithms in a nutshell' or something like that and explain all those algorithms out there in 100 seconds.

[@Dan7Isc]

Great video! More algorithm-type videos would be awesome!!

[@lomitaswasuna5132]

Simple, short yet great content. More on algorithms please.

[@mc5427]

I hope there will be more videos of that type, you explain Algorithms in a very good way.

[@SohailKhan-cb9ls]

Much needed refresher. Need more of it.

[@berkakipek8991]

Hey Fireship keep up good work. Your channel is awesome. It will be great if you make more videos about algorithms.

[@darriongering392]

More of these please!!!! So well done

[@Kayzewolf]

Your method of teaching both in the "to the point" time constraint and the visuals have really helped me better understand what a lengthy memorization-centric course fails to do.

[@pranavsetpal]

Woah, that's pretty cool! I knew how to do it but by using a recursive function it was definitely a much different approach I hadn't seen before. Looked so much better than a binary search algorithm I had made earlier.. The explanation was so much simple and straight forward from the one in my textbook. This is absolutely amazing!

[@wizarddev3506]

Quite an interesting algorithm and certainly one important for all developers, regardless of language or field. The video explains it quite well. Keep up the good work Fireship!

[@JoeyFenny]

Yes please! Great job at simplifying it. Way easier to understand than via leetcode

[@betterdeveloper9073]

Yes, please more videos like this. And thank you for all your work!

[@deriegle]

Great explanation! Would love more of these videos.

[@antonionotbanderas9775]

This channel is so good it's raising my ADD everywhere else.

[@JayJames]

I already know this will be a great mini series!

[@BrandonAaskov]

You’ve done it again! So concise!

[@Iceehockey21]

You never miss ! So helpful

[@HazemTamimi]

Yes, we need to see more videos about algorithms and data structures please!

[@onefloatavenue]

I hadn’t been able to picture divider-and-conquer algorithms for weeks, until this video. Thank you so much.

[@alvin6088]

This is the simplest and understandable explanation I've found on this topic. Thanks!

[@sergioornaque7943]

I love this type of videos, please make more of these ^^

[@shegsdev]

More of this Jeff! Thank you

[@mukhammadsobirov1311]

yes, I'd love to see more videos on this topic please!

[@timc0212]

This was a really cool video, keen to watch more

[@sostenemunezerobagira8358]

Well explained, Please continue making algorithm videos

[@unaisulhadi9102]

Yes, Please to a complete series on all algorithms and data structures, it'll be really helpful.

[@FOLKENT05]

Hey jeff great job!! Yes pls more algorithm examples!

[@phyf3]

Great video, really simplifies it, please make more data structures and algorithms videos if you can, thank you!

[@eduardocruz1882]

Your style is awesome!, Tries would be a really good topic!

[@7im283]

Please make more algorithm videos!!! This one helped alot.

[@moonedCake]

Amazing Content❣ Thanks a lot. Please do this type of explanation for other algorithms as well.

[@aakudr2474]

Yes please! You're great at explaining algorithms! ♡

[@tanveerabbas26]

That is really awesome . please cover all algos and data structures topics .

[@mtrsoftwareservices]

Good video. Would love to see more on this topic.

[@sohammondal578]

Extremely helpful. Thank you!

[@TechyMechie]

I like the humour of your videos. It is just awesome! You successfully manage to deliver the techy content along the way. It makes my day and it is one of the reasons I follow your channel on top of the valuable coding tips and tricks you provide. Thanks...