JavaScript in 100 Seconds

[@samstenner1898]

Many people might find it hard to believe a language can be built in only 1 week. Having used JavaScript, I find this very easy to believe.

[@sp1nk1ck53]

Indeed

[@flowerofash4439]

Lol 😂

[@liftingisfun2350]

@@atomicgray it's really the wild west of languages. Many ways to do the same thing, no variable types, etc

[@funwithariyan7347]

@@atomicgray a bit of a mayhem

[@theshermantanker7043]

@@atomicgray both

[@flannelbeard4621]

Been using it for over 1,000,000 seconds and it's still confusing, and I've been a professional front end developer for 17+ years.

[@maybeanonymous6846]

@Jeffrey Rujen Well they've been using it for more than 11.5 days

[@jekytck]

@Jeffrey Rujen 11.5 days is 276 hours of (assuming) pure coding, which is not "just 11.5 days", especially if we take in consideration that coding can take on average 20% of the whole time if working on the whole project (designing, thinking, evaluating, testing, etc takes about 60-70% if I'm not wrong). Just to have a more clear idea: it's as if they've been working with JS related projects for 1000+ hours as a rough estimation (or more, depending on his position) And even if that's not the case, 11.5 days of something is quiet a lot , in fact it might take 13 weeks of 3hours/day work with 2 days off per week It's not mind-blowing, but it's not just "just" either.

[@chocogreen1]

@@jekytck This is going from straight from 0 to 100 in "100 seconds"

[@GabrielFerreira-ot8cg]

That's a lot of seconds

[@thefakedeal]

Whenever I think I'm now fimiliar with JS it hits me with something crazy

[@baggier]

Never heard of this language Thanks for letting us know about These small languages 🙏🙏🙏

[@multiarray2320]

js got roasted

[@adityapatel720]

@@BlackdestinyXX its almost as if thats the joke

[@fus3n]

bruh no one got the joke?

[@naveedalirehmani4135]

Hello everyone, We got a caveman here!

[@okie9025]

@@multiarray2320 its a joke bro jfc

[@juanandrescastillofuenmayo6619]

Editing and sound is on a whole other level in this one! The fact you're always stepping up your game with each video still surprises me. This is an awesome way to wrap up both the basic web technologies in 100 seconds series and the weird Javascript course.

[@elnogal9298]

Well it's not really 100 seconds.

[@melodyparker3485]

@@elnogal9298 True, but still

[@Talonf37]

Need this man to do an entire tutorial he's so good at explaining things.

[@muneebmohd]

I usually don't comment but for this one, yes he should

[@Evoleo]

He literally does

[@Jujukungfu]

Lol have you seen his other videos

[@roid1510]

He has fireship pro. Those a full courses

[@tossajalumen401]

this man have pretty much tutorials, you should check the channel....

[@HazemTamimi]

A JavaScript developer here with 10+ years of experience, and watching this gave me goosebumps

[@peaklander1]

bro touch some grass

[@omgfackdehell]

@@peaklander1 where do I find good starting projects to test and develop my JS knowledge?

[@greenshaheen]

you are just copying and pasting the code i think lol

[@nieczerwony]

What bothers me is why someone would waste 10 years of their only life, for such a crap as JS 😉

[@terrap0b_ps995]

@@nieczerwony Js is worthy... I find beauty in it despite its imperfections.

[@totoshampoin]

HTML-CSS-JS in 300 seconds is finally here Awesome

[@rafael_tg]

After watching this 300 seconds I changed my LinkedIn to full stack developer

[@qqq3230]

@@rafael_tg 'frontend'

[@JR-mk6ow]

@@rafael_tg you still need a bit of sql for the backend

@@JR-mk6ow Just get some ORM library and you're set

[@davidnguyen9065]

@@JR-mk6ow That's not gonna do much

[@VukeFN]

This series is actually so genius. A quick 100 seconds to get you into the subject and covers it's history and usage, can't thank you enough!

[@0jinx]

JavaScript aka the final boss of the 100seconds series with ludicrous amount of foreshadowing, finally introduces it's self.

[@codefinity]

Thanks!

[@quentinvanbutsele371]

the beginning of the video is epic. In a single sentence...

[@PhantomOfMemories]

Dude, my teacher is not very good at teaching stuff and doesn't dumb it down enough or simply for me to understand as a learner. This made more sense! Thank you!

[@W1L7dev]

Finally 100 seconds of JS! Great video btw :)

[@bogxd]

Ur videos are what this platform needs

[@Luis1n7]

Everytime I'm not really motivated to code, I watch one of your videos and suddenly I'm on fire. You're awesome!

[@nodirbekvositov]

because it is 'fire'ship

[@trein6958]

Finally! JavaScript in 100 seconds!

[@MaxProgramming]

I was so badly waiting for this video the moment you announed it to show it to my friend who is having a hard time learning JS!

[@flowerofash4439]

Well it's hard to understand a language that have weird variable scopes, treat string and number the same thing and not the same thing at the same time with tons of syntactic sugars

[@TheOriginalJohnDoe]

I think something that should be worth mentioning is that JavaScript always runs twice, which brings up the topic "hoisting" The first time JavaScript runs it will "hoist" variables and functions to the top of the file and then the second time it will run the code. This is something not a lot of beginners know, but is essential to get a good grasp of how JavaScript works.

[@aniruddhasharma5738]

Hoisting is why 'var' is avoided.

[@Voidstroyer]

I suppose that you are talking about the initialization phase and the execution phase. It's not necessarily that javascript runs twice. It just has 2 phases.

[@rv264]

It’s not running twice I guess . What you are talking about is basically memory allocation in the execution context of the call stack . So even before the code start executing all the variable and functions are allocated memory and then it keeps getting popped out of the call stack

[@The_Red_Scare]

@@aniruddhasharma5738 Why would that affect var?

[@nobleradical2158]

@@The_Red_Scare if a variable defined with var gets hoisted it could be defined for a larger scope than intended, which can lead to a bunch of problems

[@vicradon]

This was expertly made. Thank you Fireship.

[@ThePandaGuitar]

JavaScript, not the language we deserved but the language we needed. Any application that can be written in JavaScript, will eventually be written in JavaScript.

[@IskeletuBr]

Dunno if I agree with that, just because it can be written in a lang doesn't mean it should.

[@cursed_cats5710]

Writing anything beyond web frontends in Javascript is a human rights abuse

[@Hari-du6pt]

I just learned what a single threaded with a non blocking event loop means thanks to your great visualisation. Nice

[@utkrist2981]

I was literally looking for this video 12 hours ago. I couldn't find it by searching so i even checked all the videos in the channel to find it but didn't have any luck and 12 hours later, it gets uploaded. Damn!

[@juliuswaldmann8682]

I use javascript for years and consider myself very fluent in it. I just watched this video because of the amazing quality and the fun watching it ^^

[@khanayan-v7z]

Do you have any tips for me? I am new to JS!

[@BrandonAaskov]

That was the most succinct crash course on javascript ever. So impressed, that must have taken so many drafts to figure out how to do properly.

[@richtigmann1]

I'm loving this series, quick and concise!

[@bossdaily5575]

Finally you talk about javascript been waiting for this

[@stevenstraker5105]

You deserve an award for packing in and explaining this much of JavaScript in only 100 seconds

[@souls.7033]

Best web dev channel in the entire youtube! no doubt about it! love you man, you're amazing

[@sanusihassan7125]

I was waiting for this for a long time

[@sumanbhardwaj9883]

Bro his videos are so fricking good, like the audio is just the best

[@ScriptureFirst]

OUTSTANDING! @Every KZbinr: do videos like these!!!. 🔥♥️🙏🏼

[@reimakesgames]

nice job, i really like these types of videos, i'm eager to see more!

[@iamnisargful]

Best short programming intros on the web. Period.

[@blueSpirit137]

Fireship uploads new video. Instant watch + like.

[@QwertZero]

Waited a lot of time to see this video and now it's finally here

[@jollesracing517]

You make the best programming videos on KZbin

[@mohsenjavaher7782]

backend developer here ain't no way im learning all that nonesense (love your videos! fast and understandable.)

[@hugoribaud7436]

Hey dude, loving your videos ! I was curious about the app you're using to edit your video, maybe a new topic "Video editing in 100 seconds" would be great ;) Keep up the good work !

[@ianofSST]

genius idea

[@FindTheMasterpiece]

Amazing pace! Keeps me concentrated on the content.

[@mhdfr]

0:17 "Easy to learn scripting language" *YES PRETTY MUCH*

[@ash.mystic]

The first language I learned (in school) was Java. I was so confused when I got introduced to JavaScript because I assumed they were related. But I now know that JavaScript and Java have about as much in common as the words raise and raze 😅

[@unforgettable31]

What makes you think js and java aren't related? They absolutely are because both are inspired by C. Just because they're not identical it doesn't mean they're not similar.

[@Certified_Art_Teacher]

Alright!! I'm ready for my interview tomorrow!!

[@zzzzüp]

Wow, even a Murray Rothbard reference. This is certainly my favorite channel.

[@apoilgun8342]

He is achieving his goal of making each video better than the previous one.... that one was top-notch

[@JeanOsorio]

I’ve been waiting for this video my whole life

[@mohammedalasmri8193]

great video thanks for being in our era 😂❤️ please c++ next episode ✅👍

[@murderbeam9614]

2:16 I see what you did there, and I wholeheartedly approve ;) For those interested, there's an audiobook version free on KZbin and it's only about an hour/hour and a half essay.

[@gulraizgull8044]

thanks man those 100sec are best series

[@sukus]

I think it would be incredibly funny to see a video on GML (GameMaker Language). Not only because it serves only one purpose, not only because it is heavily integrated into the GameMaker IDE, but also because it is the most inconsistent mess of a language ever concieved.

[@murderbeam9614]

"Hey, that function you've been using for 3 months into the development of your game? It's deprecated now, use these 8 new ones to replace it"

[@sukus]

@@murderbeam9614 Thta doesn't happen all that often, unfortunately. And the engine is so stupidly backwards compatoble that a deprecation notice won't mean anything for at least a few years. I have imported GM5 games into GMS2 without having to change a lot.

[@murderbeam9614]

@@sukus Oh don't get me wrong, I love Game Maker, and GML to boot, but it certainly does have its quirks.

[@sukus]

@@murderbeam9614 Absolutely, GML is awesome. I just wish they got rid of the legacy jank (async_load being a ds_map and not a struct, etc.) and made a proper type hinting system

[@senushkabatawala5563]

Nice! This video is pretty useful

[@amirhoseinhesami9336]

JavaScript in 100 Seconds by a js god, tnx jeff

[@TheseWordsTouch]

I cant believe I understood all of this. I'm sure the rabbit hole goes much deeper but thanks!

[@mrreese2342]

My first JavaScript course is going to be tomorrow morning and i'm so excited.

[@egrekov]

How is your experience with JS now?

[@Gobillion160]

the most anticipated video of all time

[@SunehraAGhani]

2:23 Love the output! 💕

[@vndaba]

Finally....its been a long time coming.

[@vampirejs758]

U just remembered about javascript in 100secs after making 100+ videos on javascript. Nice one tho!!

[@davawen9938]

Damn, we came back full circle with the 100 seconds videos

[@Iceehockey21]

I am binge watching all of your videos. So good ! 🔥

[@Hugs_is_where_its_at]

Can't tell if I'm 100 seconds smarter or just more confused.

[@Rednecklesson]

Garage Collected 0:04 just playin love you bro

[@vinayakkumar2667]

Woaaahhh, intro was a bangerrrrrrr

[@k1llmachine4]

Used to hate JS until I took the time to learn it properly, now I love it

[@ouvie]

i just discovered your channel and you're amazing!

[@elvismakengu3204]

I just got a job offer from Amazon, thank you for the video

[@JordantheComputerScientist]

I’m taking a course on this and this seemed like a review. Means I’m paying attention. Thanks for the great video!

[@migvelv]

1:18 I wasn’t ready for that cursed 3D emoji

[@timothydog76]

Sound like a really cool up and coming language. I’ll have to check it out!

[@Userk2406]

I needed this now👍

[@theunicornishere]

Thanks for making it harder.

[@Chocoffee_battery]

I used to edit minecraft pe mods in javascript format using es file explorer even though i have no clue of programming. Now i have powerful devices i think its time to learn this for real

[@yodkwtf]

This was the first time that I felt 100 seconds were just not enough lol.

[@karlstenator]

With every 100 second video I watch, my LinkedIn skills grow. 🔗

[@fgsaldanha]

The truth is, most of us should know any topic from such an introductory video, but Jeff summarizes the content so well that we can still learn something new.

[@horizont6172]

Exactly, like: why javascript is called javascript

[@karcagigergo]

Awesome video as always, my dude. Do ruby next time!

[@abbashussain7298]

the one. we’ve all. been waiting for.

[@FalconTheFries]

It’s been here for 27 years and I’m hearing it for first time! Guess it ain’t famous or widely used

[@VforVanish]

Rothbard reference, nice to see Fireship getting orange pilled!

[@vojtechstrnad1]

Good to see I wasn't the only one to notice.

[@joseph0x45]

Yes!! We love JavaScript

[@ChessFlix]

Great work as usual Jeff.

[@YashCodesX]

This is Crazy Awesome!!! Thanks a Ton!!!

[@abujasm2223]

Well, that's nice! My JavaScript course starts tomorrow! Do you have cameras in my house or something? 🙂

[@emilOnYoutube]

In JS arrays equals strings . var a = [1,2,3]; var b = [1,2,3]; var c = '1,2,3'; a == c; // true b == c; // true a == b; // false

[@vojtechstrnad1]

Wow, I was prepared to debunk this, typed this into the console and it's actually true. That's so messed up.

[@KManAbout]

No it isn't exactly true. You are not type checking.

[@KManAbout]

=== is an exact equal

[@KManAbout]

== converts the type

[@KManAbout]

Then checks

[@khaledsanny4817]

How curious... :D... After so many JS related technologies... here is Javascript in 100 seconds...

[@darkwoodmovies]

Very cool Fireship, thanks.

[@dannyspivak6526]

Love those videos, thank you

[@4esv]

I've been waiting for this one

[@3rd_iimpact]

You’re the Scamboli Reviews (a KZbin channel) of programming 🔥❤️

[@ThePenitentOneArg]

2:15 Beautiful book btw

[@xeeezyx]

Great now i'm ready to apply for a full stack web dev job

[@dopetag]

Thank you! Top work once again

[@hughmungus99]

woah holy shit i learned so much just now, so much makes so much sense and it was a mere 100 seconds. Wild

[@pr1nglz.408]

Programming isn't about what you know; it's about making the command line look cool

It continues to evolve to... up standing human TS being. Nice touch!

[@leventebotos6927]

The first 100secs video that i understood :)

[@SUPABROS]

my favorite programming language, so readable and easy

[@alfredogrande2430]

i have a question, how do you make that cool effect for the js image from 0:00 to 0:02? I'm learning some video editing with remotion and i would like to know how to make different effects

[@SwimCraft]

JavaScript is the most useful language to learn in 2022

[@codex8797]

I think English is actually more useful

[@keelwakamar]

Me: *watches this video* You know, I'm something of a fullstack developer myself

[@MercyFromOverwatch2]

Jeff is still my favourite tech youtuber