What do JS functions really return? And why?
ฝัง
- เผยแพร่เมื่อ 8 ก.ย. 2024
- This video examines the concepts of Immediately Invoked Function Expressions, return statements, what happens to functions without return statements, how to return a function from a function, and situations where your function has multiple return statements.
Code GIST: gist.github.co...
Hohoho, it's like a never-ending maze learning Javascript; "What do JS function _really_ return? You thought you knew but, think again."
It is a crime this content is free. Huge thank you.
Thank you so much for a thorough explanation. It was hard to find an answer to my question until I visited your video.
Very useful; clearly explained - thanks for all your videos.
I FINALLY get it. Thank you! Binge watching all of your videos. Making my life a whole lot easier.
Thanks Steve! Another great video.
Thank you as always for these insightful tutorials.
this was really cool and it is great that you explain whats to use of iife
Thanks very well explained..
Your videos are so helpull tahnk you so much
Another very cool tutorial!
Thanks for explaining that concept.
Thanks pal, useful tutorial.
ok! now i get it! thanks!
Thanks great explanation
Yeah, Finally finished this playlist and got too much info hope i won't forget them
Thanks Steve. Good Job!
So, what to do Now?)
Which playlist did you finish. I have lots of them. I have nearly 700 videos. New videos almost every week.
Next steps are always to build things.
@@SteveGriffith-Prof3ssorSt3v3 JavaScript from the start . Total 132 videos)
@@asusbook4034 have a look at JS in the browser next then
Thanks Steve for the clear explanation can you do a video on recursion?
th-cam.com/video/AQrYWQyewq8/w-d-xo.html
@@SteveGriffith-Prof3ssorSt3v3 Thanks steve!
I want to return multiple dynamic div in map function into a main id variable to show the divs in main .. but I don't know how to do it.
I have lots of playlists on JavaScript in the Browser, working with the DOM, and the Array functions that will teach you all of that.
Was expecting something on functions explicitly return an array if it has to return more than one value.
Hey man thank you for this tutorial! What program are you using for this? I'd love to quickly test out JavaScript code like that. :) Thanks!
I use VSCode as my IDE. and I have the Terminal panel open.
I like that you teach returning functions from functions. This is an interesting point. But the interpretation of undefined as false and returning only true in case buybeer() succeeds is quite unreadable.
th-cam.com/video/J4N6ETFpdkA/w-d-xo.html
Hi Steve Griffith,
how to you add >= (≥) or !== (≠) difrent type in vscode.
How can I change my greater equals sign >= just like yours in vscode @5:34 line 11
It's just a different font with specific ligatures. Jet brains mono
Honestly get lost halfway but I know with repetition I will get it just takes practice
Exactly. Give it a little time and you won't understand why this was so hard.
subbed so fast
Hello Sir, Great tutorial , your thoughts on how to progress on logics in javascript like working on array, control flow statements etcc....i find it difficult to understand the logics and it takes lot and lots of time to learn few logics, your thoughts will help me,.....Thank you Sir, you are great
Hello Sir, your inputs will be invaluable,please do share ur view when you are free, Thanks again
I have playlists on lots of topics. If you go to the playlist area from my channel homepage you can see all the groupings. The JavaScript from the Start list covers all the fundamentals.
Is this correct? : Doing it this way each time you call the iife, each obj will have it own functions and doing it with prototype all obj will have same functions.
They both have appropriate times to be used. An iife typically gets used to create a single object. It has a closure that protects variables and functions that are nested inside. Those items cannot be altered later. Think - your initial app object.
Prototype methods are meant to be shared and used when you are creating multiple objects.
@@SteveGriffith-Prof3ssorSt3v3 im sorry, i worded my question very poorly. I meant to ask if i understood to differences correctly. I wanted to know when doing it this way, the properties would be in the prototype or just be normal properties? Its better to use prototype when there are multiple instances and its better to use this when there is only one instance.
I have seen ()(); syntax in a lot of projects and libraries and they always confused. i didnt knew how to google them cause i didnt know what they are called. Thanks man, your videos are really helpful to me.
Where to find this '≤' ?
thanks or the video.
@Basheer Hallak there are fonts you can use that have ligatures. If you set your VS Code font to FiraCode you will get the same result. Hope this helps.
wow babe
This is what happens when you design a language while high...
What should I learn to develop my own commercial website
For a commercial website you need a little bit of everything - client side html, css, and javascript. Serverside you need some way of storing data, which means databases of some kind like MongoDB or MySQL, plus a serverside language like NodeJS or PHP, plus security for managing data of user accounts and security for handling purchases.
@@SteveGriffith-Prof3ssorSt3v3 I started with JavaScript learning
Two weeks ago
I got a confused suddenly
Should I switch to php now?
Very confused
Basically I am a mechanical engineer
So please forgive if my questions are wrong
Looking for your suggestion after HTML and css
@@prabu2778 No. Don't switch. PHP is just one option for serverside programming. There are lots of choices to make for the different ways you can build the back end of a website.
Two weeks is nothing. There are lots of courses and bootcamps that will say that they will make you a full stack developer in 10 weeks. But honestly it takes years before anyone can be competent enough to use all the different technologies on the client side and server side and dev ops so that they can build anything more than a basic website at a professional level. After a 10 week bootcamp you can get a job as a junior level developer building websites. That means you are working under the supervision of a senior developer who does have the years of experience.
It doesn't matter what you are learning, as long as you are learning.
In 25 years of doing this I have never spent less than 5 hours in any week where I wasn't learning something new.
@@SteveGriffith-Prof3ssorSt3v3 thanks sir for typing this huge paragraph
Sorry sir for stressing you
Okay well then I will continue with my JavaScript sir
Very helpful sir
I really didn't understand anything you said. Really frustrating :(
Sometimes with programming you just need to repeat topics until the abstract topic sticks in your mind. Different people will get stuck on different topics for different amounts of time.
+++
You should replace your click baity title with "JS Functions that return Functions" so that you don't waste my time.