Learn JavaScript in 12 Minutes 

Wow...I was pretty suspicious about a claim to "Learn JavaScript in 12 Minutes", but you actually did a really good job of explaining a ton of material in a short amount of time.

Advice, put the speed of the video to 2 and learn JavaScript in 6 Minutes.

wtf i watched this and now i am full stack javascript developer at facebook??? thx

Book : I teach you to understand JavaScript in 24 Hours Jake Wright : Hell No... I can do it in 12 Minutes

I know I'm late to the party, but I want to thank you, I watched your html and css videos, then I started learning Javascript with this video, I even bought the same book on ebay, let me tell you I never did any programming and web development before, and I'm glad I'm learning thanks to people like you, who share their knowledge with others, thanks a lot.

In all honesty, you've actually explained it better than 2 weeks of my online class.

Man, you were not kidding, you DID cover the essence of coding in JS. As a raw beginner, I already feel like I am up and running in the language. Thank you!

This shit is legit, I watched this and now I'm a full stack developer at Facebook. Thanks so much dude

This guy literally taught everything my introduction to software engineering class taught in one semester in 12 mins.. I was worried about passing the exam but less worried now

1. // *Variables* (arithmetic) var *num1* = *5;* var *num2* = *3;* var *total* = num1 + num2; document.write(total); = 8 in browser 2. // *Variables* (string/letters) var *alpha* = "ABCDEFG"; var *length* = alpha.length; document.write(length); = 7 in browser (length of string aka amount of letters) 3. // *Arrays* (first, tedious method) var a = *new* *Array* *[7]* a[0] = "cat"; a[1] = "dog"; a[2] = 95; a[6] = "true"; document.write(a[6]); = "true" in browser 4. // *Arrays* (fastest method) var a = *["cat", "dog", 95, true];* document.write(a[0]); 5. // *Functions* (INSIDE ) *function sayHello(who)* { document.write("Hello, " + who); (OUTSIDE ) sayHello("Bob"); document.write(""); = "Hello, Bob" in browser 6. // *Conditional* ; if var a = 7; *if* (a > 10) { alert(a); } *else* { alert("The condition was false"); } 7. // *Conditional Loop* ; For() for (i=0; i

I love tutorials like this. Often, courses start with a long winded, slow introduction covering the basics that takes sometimes hours. I find however the best way to learn is by doing, especially with simple concepts, and a lot of the times it can just be learned as you work on more complicated uses.

For someone who's already familiar with programming concepts, trying to go through every thing in the book when learning a new language is soo boring and often I give up... But videos like these are gold mine for me, which teach exactly what's enough !!! Thanks a lot mate !!!

It’s crazy how watching this a year ago I would have been lost. Now after learning python, go, and a little C I was able to understand everything shown here... I guess people like me are precisely who these videos are for. Loved your 12 minute go variable. Would like to see one in C/C++ or Java as well.

Game Developers: This game has 24 hours of Gameplay. Speed-runners:

started watching and damn in 13th minute google sent me email to hire me.

Instructions unclear: being chased by an AI robot I created

This has been around awhile, so you probably don't read your comments anymore, but in case you do... Thanks for such a clear, simple, and complete intro to JS. It was exactly what I was looking for.

This was exactly what I needed. It may however be beneficial to some to put a disclaimer that some programming experience is requisite to understanding the content.

I'll be honest, as someone who had absolutely no knowledge about the language, but experience with others, this was amazing. I know it's 7 years later but your crash course taught me sooo much in a short amount of time.

Knows you can’t learn js in 12 minutes clicks any way. 🙃

I had a basic on c & php language, but not javascript yet. After i watch this video, damn man U good at teaching, very simple, and obvious. Thankyou

People expect to be able to watch this video and be experts at Java. This video is an excellent clarifier and even starter. And it's like maths, you can sit and watch videos all day but if you don't practice and experiment, you won't know a thing.

Useful for people who already know Javascript.

Twelve of the best minutes I've spent doing online training. Showed the language essentials and how to run it. Enough to get me started. THANKS.

This is exactly what I was looking for. I am a well versed programmer of a proprietary language, and what I was looking for was a very rapid overview of how to use variables, operators, arrays, properties, methods, custom functions, conditionals and loops, etc (the core of the language), so I could see how it differed from the language I was used to. No, I can't sit down and start writing JavaScript code today, simply from watching this video, but I now have a firm grasp of the fundamental features of the JavaScript language. Again, exactly what I was looking for.

Can you make another video "Learn more JavaScript in 12 min", or maybe in 15min

Thanks for the video. For those watching, JS is not solely a client side language, it is a lightweight language that typically runs in the browser but it is not longer the sole place, things have moved a lot since 2014. JS is at the core of node and raw JS is good for Lambdas, particularly as the cold boot times are very low. It's also, very recently, the sole language supported by CloudFront functions that run at the very edge.

Love the easy pace and the depth out into each part, it makes it so much easier to comprehend!

I have learned js from many places but, the way he explained made me understand every single line of code without any doubts.....Thanks Jake

This is everything i need to know for my exam tomorrow. thanks a ton!

Jake, Thanks for this lesson in beginning JavaScript. It's amazing how quick and precise you condensed a text book chapters into this time frame.

As someone who has coded in many different languages all ready this is perfect.

Why am I watching this, I do frontend web development for a living

Best 12 minutes spent all day. Working my way through someone else's *lonnnng* course and just needed a break.

this much input in 12 minutes without any unnecessary talks seemed great. subscribed.

This video has one of the best, clearest explanations of for loops I've seen anywhere.

Nice that you increased font size, reducing stress on your eyes. Thank you.

This is exactly what I was searching for before starting off with React. Thanks! Great video!

I missed my first javascript class last week and have spent about 4 hours watching various "learn javascript in an hour" videos and finished every one them as clueless as I started. Finally it's starting to make sense! Thank you! 🙌

Very comprehensive video. I decided just today that I wanted to start learning JavaScript as it would help me become a biomedical engineer. This video was very easy to understand and I love that you put in the description the different application sites so I could download the necessary apps. Thanks for you help.

this tutorial is useful if you already have some background information. thanks !

Who is here, focusing more on Comments than Video?

You sir have increased my knowledge and for that I thank you. Very concise. Great job :D

This is very good because it is results-oriented teaching. He tells you the minimum you need to know to get a result. After you get the big picture, you can then go into the details. So many tutorials and teaching platforms don't get this. They start with the detail, so it takes forever before you can actually do something with your knowledge, by which time you've forgotten everything.

You have the teacher inside you. You have the ability to transfer your knowledge. Just knowing isn't enough if you want to call your self teacher. And you got that element inside you. Thank you.

Last five Years : Literally Nothing 2020 : Suddenly youtube is interested to teach me JS.

you explained it quite clearly. you make a good instructor. would be nice to put more short tutorials on youtube. thx.

Speed of information is great for people who have previous programming experience definitely not for beginners.

For someone like me, who already has experience in C++, this was really easy to understand, and it had a ton of information for 12 minutes. Narrating voice was distinctive and really satisfying to listen to. I absolutely enjoyed the video!

Obviously It isn’t a comprehensive vid, but the best tutorial for JavaScript ever on RU-vid

Great video Jake. You have a fast way of explaining a lot of info. I already knew most of what you said but even total newbs probably came away with their heads full. JavaScript is a great language to learn as one of your firsts. Thanks and keep making great videos like this

Thank you, man, this kind of videos are really practical and useful.

This was a great video! And I'm amazed on how similar JS and Python are. Especially lists and arrays.

I took multiple notes during class last week and could not piece together everything. This video gave me multiple “ohhh” and “uh huh” moments. Great video, you got yourself a new sub.

This is fantastic! It’s like he has distilled 6 months worth of content into 10 minutes 😳😮

"Learn JavaScript in 12 Minutes" - I've spent about 30 minutes reading the comments lol

Amazing video, so concise, so clear, incredibly useful. Many thanks!

lol why did i watch a 7 hour tutorial when i coulda watched this

Wow I'm digging C since 2/3 weeks and now I know basic Javascript in 20 minutes. Thanks !

I started a coding course on Monday. Got a bit of the basics but I still struggle. This has helped a lot. Thank you.

I accidentally learned it in 3 minutes Anyone same?

Nice!Learning should have been like this.

This is amazing You did very good so... I want to congratulate you for helping us with Javascript! :D if(comment includes "Thanks") print("Your Welcome!")

I wish, I had know this video existed 5 years ago. It just cut through all the bullshit and tech you the most basic but important parts of javascript in a layman language . Jake you are awesome.

It wasn't Full JavaScript but still you covered much in 12 mins .. Appreciated 👏🏻👏🏻

i did learn pretty much everything in that short period of time thanks :)

I've learned more from this than watching an hour tutorial

👏👏just exactly what I was looking for

Thank you! I've spent days browsing courses and none of them explains the bases as simply and straightforward as this video did. Now I can actually understand what's going on and continue with "the good stuff".

It's great video not for learning from zero but to remind and clarify basics if you know them already.

Thank you so much! This video was a fantastic clarification of so many foundational building blocks of Javascript! He does go fast, but I just paused the video and replayed the parts where I needed to hear it again (and again and again, lol)! This was great; thanks again for posting this video.

Thank you so much 12 productive minutes (y)

More like "Every programming language ever" in 12 minutes.

I took an udemy course on coding and whatnot and the video solidified all the important parts of javascript for me, thanks!

I am not exaggerating when I am saying that I just want to be like you at teaching. Also you actually saved my life. Thanks

Thanks brotha!

Hey Jake, which program do you use for editing photos? I really like the way your website looks, and was curious as to which technologies you used to create it other than HTML, CSS, and JavaScript? I just know basic HTML, CSS, and Python at the moment..and I'm looking to learn more to improve my skills.

This was pretty nice to follow

So basically I learned more in 12 minutes here then I did in almost 45 days on free code academies online. Keep up the good work bro, this got me subbed

This has made more sense than some hour+ videos!

confirm("A wild Pikachu appeared! Charmander, I chose you!"); var myTotalDamage = 0; var myDamageLeft = 50; var totalDamage = 0; var damageLeft = 30; var potionCount = 3; var pokeballCount = 5; var damageCounter = function() { if (totalDamage >= 30) { confirm("Pikachu fainted!"); } else { pikachuAttack(); } }; var myDamageCounter = function() { if (myTotalDamage >= 50) { confirm("Charmander fainted! You flee to a Pokemon Center."); } else { pokemonBattle(); } }; var pikachuAttackDamage = function(damage) { myTotalDamage += damage; if (damage 0.1) { charmanderAttackDamage(5); } else { confirm("Charmander missed!"); pikachuAttack(); } break; case 'EMBER': var emberAttack = Math.random(); if (emberAttack > 0.25) { charmanderAttackDamage(10); } else { confirm("Charmander missed!"); pikachuAttack(); } break; case "FLAME THROWER": var flameThrowerAttack = Math.random(); if (flameThrowerAttack > 0.5) { charmanderAttackDamage(20); } else { confirm("Charmander missed!"); pikachuAttack(); } break; default: confirm("That is not an attack! Please select TACKLE, QUICK ATTACK, EMBER, or FLAME THROWER!"); pokemonBattle(); break; } break; case 'BAG': var bagChoice = prompt("Use POKEBALL or POTION?").toUpperCase(); switch(bagChoice) { case 'POKEBALL': if (pokeballCount > 0) { confirm("Use a POKEBALL?"); var catchChance = totalDamage * 10 * Math.random(); if (catchChance >= 50) { confirm("Success! Pikachu has been caught!"); confirm("Pikachu's data has been added to the Pokedex.") } else { confirm("Oh no! Pikachu broke free!"); pikachuAttack(); } pokeballCount = pokeballCount - 1; } else { confirm("You ran out of POKEBALLS!"); pokemonBattle(); } break; case 'POTION': if (potionCount > 0) { confirm("Use a POTION?"); if (myDamageLeft = 0.33) { confirm("You have escaped!"); } else { confirm("You cannot escape!"); pikachuAttack(); } break; case 'VIEW STATS': var statChoice = prompt("View BAG ITEMS, MOVES, MY HP, or OPPONENT HP?").toUpperCase(); switch(statChoice) { case 'BAG ITEMS': confirm("POKEBALLS: " + pokeballCount + " POTIONS: " + potionCount); pokemonBattle(); break; case 'MOVES': confirm("TACKLE - Damage: 10 Accuracy: 75% QUICK ATTACK - Damage: 5 Accuracy: 90% EMBER - Damage: 10 Accuracy: 75% FLAMETHROWER - Damage: 20 Accuracy: 50%"); pokemonBattle(); break; case 'MY HP': confirm(myDamageLeft); pokemonBattle(); break; case 'OPPONENT HP': confirm(damageLeft); pokemonBattle(); break; default: confirm("That is not an option. Please select MOVES, MY HP, or OPPONENT HP.") pokemonBattle(); break; } break; default: confirm("That is not an option! Please select ATTACK, BAG, FLEE, or VIEW STATS!"); pokemonBattle(); break; } }; var pikachuAttack = function() { var pikachuMove = Math.random(); if (pikachuMove 0.25) { pikachuAttackDamage(10); } else { confirm("Pikachu missed!"); pokemonBattle(); } } else if (0.25 < pikachuMove 0.1) { pikachuAttackDamage(5); } else { confirm("Pikachu missed!"); pokemonBattle(); } } else if (0.5 < pikachuMove 0.25) { pikachuAttackDamage(10); } else { confirm("Pikachu missed!"); pokemonBattle(); } } else { confirm("Pikachu uses VOLT TACKLE!"); var pikachuVoltTackleChance = Math.random(); if (pikachuVoltTackleChance > 0.5) { pikachuAttackDamage(20); } else { confirm("Pikachu missed!"); pokemonBattle(); } } }; pokemonBattle();

You taught me the same that I do with c++. How can I put animations to my webpage?

Book: I can teach you Js in 24 hours Speedrunners: 12 minutes. Take it or leave it

You are a genius. I thought Javascript was gonna be so difficult and you've just explained perfectly. Life saver, brilliant job

Wow, This dude did an amazing job within 12 minutes. It is very helpful if you already knows java or any other languages.

I was taking a poop, saw the video and said "why not? I might turn into a expert when I get out of the toilet".

to comment great job brother

hey knowing java at 6:08 ish i think you may have misspoken just mentioning. great vid.

I've only studied java before, and I have to say, javascript seems so beautiful.... Thanks for the video!!

Been taking a class for a few months and already learned everything for the semester in this video. Thanks!

There’s gonna be that comment so here it is “I pUt iN 2x sPeEd sO I caN lEaRn iN 6min and .25 seConDs

Excellent overview of programming syntax, not just JS :)

I am not knowledgable to understand even half of what you're saying. Where do I start? For example, I don't even know what an HTML is.

Thanks bro you are so good you helped i watched one of the videos how to make your own html it was so good keep it up thanks you are a great teacher.

Been learning javascript lately & surprised that for the first time i know more coding skills than needed.

this is cool but also feel like john maclean is teaching me javascript

A glimpse of what JAVA Script looks like.

Anyone else addicted to javascript? 🔥

I have 0 experience with coding but I am looking around after effects expresions and this was very helpfull GREAT JOB!

This is really solid. I slightly prefer the learn JavaScript in 11 minutes video someone shared in the comments.