Curious what resources have actually helped you understand JS at a deeper level, beyond surface syntax or frameworks.

Always interested in learning what’s shaped other engineers’ mental models! 💙

The book is still in progress, but you can already access it via Manning.

I’m especially looking forward to the chapters on errors, garbage collection, the event loop, streams, and worker threads.

Those topics tend to separate “it works” code from “it holds up in production” code.

What I like most is the focus on fundamentals: runtimes, memory, numbers, strings, objects.

It’s not about “how to write JS,” but how JS works, which directly affects performance, reliability, and debugging in real systems.

Another one that surprised me the first time I ran into it:

Are you aware that some stream processing errors can bypass try/catch blocks entirely?

If any of those questions made you pause, this book is probably worth your time.

Quick gut check on whether this book would be useful for you:

Do you know how V8 actually optimizes string manipulation?
Do you know why integers in certain ranges are stored differently for performance?
Do you understand how and when JS coerces types?

I’ve been reading JavaScript in Depth by James Snell, and what stood out is that it doesn’t try to teach APIs or patterns.

It focuses on why JavaScript behaves the way it does under the hood. That kind of knowledge doesn’t really go stale!

By adding your vote, you'll be notified about any updates related to this feature. ​I'm sorry I don't have a positive answer for you on this one! (2/2) - Octavio

Hi Alef. Thanks for sharing this feedback about the AI assistant on the web version! I'm afraid we still don't have any plans to add support for the AI assistant on the mobile apps. Would you be up for adding your vote here suggestions.buffer.com/p/support-ai...? (1/2) - Octavio

I see! Ok, thanks for letting me know! And yes please, if you ever spot anything that doesn't seem right, or things we can improve, we'd love to hear about it!
-Dave

Hi, I'm sorry about those unexpected black bars - I'd love to take a closer look if that's ok? Bluesky handles media display dimensions a little differently than other channels and I think that's a factor here. Is it ok for me to do some digging into your Buffer account?
-Dave

Making sure I'm on the same page here, Lance. Do you mean that, when you copy a URL from Safari on your computer, you are not able to paste it on the Buffer app on iOS? Would it be possible to send me screenshots of what you see? Would love to get a few more clues to help us investigate. - Mel

Hi Mackensie! I wasn’t able to find a Buffer account linked to this Bluesky handle. Could you please email us at [email protected] with the email address associated with your account? We'd love to take a closer look and get this sorted for you! - Ben

If working with us to take a closer look at your account set-up is something you'd be up for, please drop us an email - [email protected] - and we can take it from there.
-Dave

I see! We can certainly dig into this further with you, if you'd be interested in pursuing it. Buffer's access to your social accounts isn't permanent, and can be revoked by the social networks at any time, but that is normally quite rare.

Thanks for following up! It sounds like this affected all of your connected social channels, is that right? Were they all Meta channels (Instagram, Facebook, Threads) by any chance?
-Dave

Hi Lancer - sorry you’re running into that! Quick check: are you using the Buffer web app on a computer or on a mobile device? If it’s on mobile, this may be related to iOS clipboard privacy settings. - Ben