16.16: try / catch with Promises - Topics of JavaScript/ES6 

At 5:00 I think you were going for *if (!(results[i].img === null))*

Correct and forgive me if I'm wrong - but is the try/catch even necessary in this use case? Try/catch is used to catch errors, including those you might not expect. In this case, the error we are preparing for is if: results[ i ].image === null. But we handle that in the .then block by just not drawing the image if that happens, thus avoiding the problem altogether? I might be misunderstanding

Great, crystal clear as usual and so fun, it’s really a pleasure to learn with you

Any good examples of when it is appropriate to use try..catch then?

the most amazing thing with your videos is i enjoy and get to laugh a lot :D

Can you please share the github link for your Javscript Promises playlist's (Code implementation)

4:49 you know it’s always funny when you watch tutorial where the guy has excellent understanding of development but they still make this kind of mistakes 😂

Try and catch is really good for server and database operations, like when you try to connect or grab data. Stuff that is out of your control and has a chance of throwing errors no matter what. So ya, pretty much exactly what you're doing. In these situations you can never use them too much. I came here to see what a promise is, didnt really get my answer though.

16.15 and 16.16 are out of order in the Topics of JavaScript Playlist

I find that most examples online, although they demonstrate certain features and how-to wire them up, almost always they show how NOT to code in a professional way! I hardly ever see examples of exactly what professional developers would actually put into production code of the software they develop! That is severely lacking in the teaching world! If it's not the way you would code a professional made software yourself, then DON'T TEACH IT!!!

That try catch is a last resort is just nonsense. It’s a key aspect of object orrientated programming. If you have a function that calls a function that calls a function, and that last function produces an error, you can just say throw new exception. All the 3 layers of functions will stop running and in the top function you can catch the error. Lesson you learn from this: Don’t trust oneliner statements from random people without them mentioning a source of information.

Promises was second confusing thing for me after recursion. Now I got one, I feel so powerfull now.

lol that was funny !img === null. I started laughing the moment he did that but great comeback missing on lunch. When I am doing the demo and screen sharing i can use that line lol

Hey, new subscriber ♥ Understood you perfectly.

4:00 you can use try finally without catch

I love this man.

I love the coding train

Hey, can you let me what is a "strict mode" cuz my code is not working.

Your videos are amazing, thanks for this

You deserve a big like, as usual !

Best tutorials

I always love the videos because they are up beat and they always teach a lot

best ever

Excellent tutorial. It is very easy to understand JS Promises by watching your videos witch some good examples. Not seen anyone the way Daniel enjoys his teaching. Thank you.

Did you ever make any tutorials on how to have something running async and something else running at the same time (like the loading bar) I'm trying to run a brute force computation and draw the most recent part of that to the screen, I think I'd like the brute force to run in a loop over and over async without having to worry about the draw FPS but I'm not sure how to do this. As it stands without the async I have to put the brute force inside the draw and either the draw doesn't run at the given frame rate or the brute force is slowed (it can only do a certain number of iterations per frame)

Can you make a topic on using RxJS observables and subscriptions? Thanks.

Very useful videos , your way of learning is the best !! Please post the source code of these videos my friend .

This man helps me understand promises. but can I just point out that you sounded like donald duck?

Top notch, Daniel!! Thank you so much. This series cleared up a lot about promises for me.

Thanks, Daniel!

Very nice videos. Can you talk about how to implement streams in returning promises so that I can handle promises not at once?

Then what is the best solution for the promise.all

Great videos! Thanks!

Dan.. I was looking at you p5.js introduction videos, which mention the p5js ide. But does that still exits? Which ide are you using here? .. sorry if that’s a stupid question

Thank you for this series on promises. It's great.

Best teacher

hey guys, can you tell me where i should start watch this you tube channel as you know it has so many contents. . i want to follow this one so .. . where is point of start??