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Guten Tag! Guten Tag! ๐Ÿ‘‹

Are you aware that the ::details-content pseudo-element is coming to the web? Or have you used the Picture in Picture API already? And do you know that emojis have different meanings in the world?

Turn on the Web Weekly tune and find all the answers below. Enjoy!

Carlos listens to "Yann Tiersen -- Bagatelle (feat. Dominique A) -- L'Absente":

I hadn't heard it for a long time and had forgotten how wonderful and emotional it is, almost like a sung poem.

Do you want to share your favorite song with the Web Weekly community? Hit reply; there is only one more song left in the queue.

This week, I stumbled upon Antoine's portfolio site (disclaimer: there's a lot of motion), and wow! What. A. Beauty!

A red website with bold big letters saying "Creative Developer"

I'd love to discover more #badass developer portfolios. If you can think of one, please send it my way. Maybe we can collect and share a few next week!

Something that made me smile this week

A slack message with the text "Scroll down" below it.

Use at your own risk: these emojis' passive-aggressiveness reached a new level.

Use hidden messages

Kudos to Phil, who shared this gem on Bluesky.

Open tabs

git bisect

  git-bisect - Use binary search to find the commit that introduced a bug

I use Git's bisect command only once a year, but it's always magical if I do. If you discover a new bug or a regression, you can use the command to perform a binary search over a commit range. Git will then ask you if the commit is good or bad, and you'll find the faulty commit in no time!

Find out when something broke

documentPictureInPicture

const pipButton = document.getElementById('pip'); pipButton.addEventListener('click', async() => { const pipWindow = await documentPictureInPicture.requestWindow({ width: 350, height: 500 }); });

Have you used the Picture-in-Picture API already? It's a fairly new API supported in Chromium and Webkit that allows you to pop out floating windows while staying on top of the other windows. It's a perfect web addition for video calls and streaming sites. And it almost screams for wildly creative demos โ€” have you seen any?

Float some windows

A guide on container queries

Interactive containment example.

Josh published a new guide on container queries, and while it starts slow, the section on CSS containment is just great.

Learn more about container queries

If you want to learn even more, Roma is on a daily blogging journey and has collected more container query articles.

Will you use overflow: clip?

Demo showing that overflow: clip doesn't lead to scroll containers.

Thanks to Ahmad, I now understand when you would use overflow: clip (I think). If you haven't used this overflow value yet, this article is well worth your time!

Clip it!

You're halfway through!

Wowza! Would you enjoy getting Web Weekly straight to your inbox?

The wonderful weird web โ€“ One Million Screenshots

A grid of tiny website screenshots

Can you see it? There? Right in the middle?

Yeah, that's a screenshot of my blog listed on onemillionscreenshots.com. The site lists, you guessed it, one million screenshots and tries to group all the sites.

It's, of course, a bit of promo for the underlying screenshot API, but I still love poking around the web this way.

Inspect the web

::details-content, transition-behavior and interpolate-size

Kevin live coding

Kevin shared cutting-edge CSS features to animate details elements using interpolate-size (Chromium-only), ::details-content (shipped in last Chrome), and transition-behavior: allow-discrete (supported in modern browsers).

And you might now say, "Hold on, Stefan! I can't use all this yet!" And that might be correct, but I agree with Kevin's take. All the practices shown in the video can be treated as progressive enhancement, and if a details element isn't animating, I don't think it's a big deal.

Animate all these details

A bug that only appears on a second monitor... wild!

We found out that the bug only happened when her web browser window was on one of her external monitors. She had two external monitors and it happened on both. But when she clicked the button on her laptop screen, the button worked as expected.

Our friends at the BBC went on a mystery treasure hunt for a bug that only appeared on their site when it was on a second monitor.

The reason was a not well-known fact of a mouse event's screenX property.

In a multiscreen environment, screens aligned horizontally will be treated as a single device, and so the range of the screenX value will increase to the combined width of the screens.

Well... today I learned!

Hunt the bug!

If you're curious about how they fixed this behavior at the BBC, Josh also posted a follow-up explaining how they resolved this mystical discovery!

Two courses on modern CSS from the Chromies

Preview of "Practical UX/UI Worksho" and "Master the art of scroll-driven animations"

Adam and Bramus from the Chrome DevRels have been busy producing high-quality video materials. I haven't had the time to watch them entirely, but knowing both of them, I'm sure the videos are chefkiss.

The different kinds of focus

All sequentially focusable elements can receive the focus programmatically. A negative integer value for the tabindex attribute makes an element a programmatically focusable area but doesn't add the element to the sequentially focusable elements.

Eric described the different kinds of focus, and it was a great lesson on using tabindex correctly.

Focus!

Localized icons

What he failed to realize is that this gesture means a lot of different things to a lot different people. In Australia, the v-for-victory gesture means the same as giving someone the middle finger in the United States.

Do you know that the โœŒ๏ธ sign doesn't stand for victory or peace globally? In Australia, it's the counterpart to giving someone the middle finger. Super fascinating!

Eric lists some "icon fun facts".

Don't trust your icons

On that note, if you wonder why the "increasing chart" emoji comes with a red line, you can read more about it on the blog.

Random MDN โ€“ a method to well-form strings

String.prototype.toWellFormed()

From the unlimited MDN knowledge archive...

I love some good old Unicode nerdery. JavaScript code points are UTF-16 encoded. Some characters, like Emojis, have such a high code point number that they're represented with two code points (so-called surrogate pairs).

// 'a' fits into a single code point
'a'.length;  // 1
// the emoji is represented by two code points
'๐Ÿซฃ'.length; // 2

Things become tricky when you manipulate or split these pairs, and you end up having lone surrogates in your strings. Some methods like encodeURI will throw and reject your malformed strings.

// if you only access the first code point 
// you're dealing with a lone surrogate
const someString = '๐Ÿซฃ'[0]; // "\ud83d"

encodeURI(someString); // throws Uncaught URIError: malformed URI sequence

New Javascript methods can help out here.

const someString = '๐Ÿซฃ'[0]; // "\ud83d"
someString.isWellFormed();  // false
someString.toWellFormed();  // "๏ฟฝ"

encodeURI(someString.toWellFormed()); // "%EF%BF%BD"

toWellFormed takes these lone surrogates and replaces them with the Unicode replacement character "๏ฟฝ". Good to know!

Clean up your strings

TIL recap โ€“ keepalive fetch

await fetch(`${root}/api/collect`, { method: 'POST', body: data, keepalive: true });

I learned that fetch supports a keepalive option so that you can use it as a flexible sendBeacon replacement. And the best thing is that it'll enter the baseline soon!

Finish all these requests

Find more short web development learnings in my "Today I learned" section.

Classifieds & friends

Preparing for your next job interview is stressful and intimidating. The GreatFrontEnd prepares you to shine, and they're currently running a Black Friday sale that is 30% off. Check it out!

Three valuable projects to have a look at

A new Tiny Helper

Astro dependency graph showing tons of dependencies.

We all know that running npm install pulls in millions of lines of code. Yet, I like looking at a project's dependencies. pkg-graph is another one of these package visualizers, and I love that you can control the dependency depth. This way, you can inspect the direct dependencies.

Analyze your deps

Find more single-purpose online tools on tiny-helpers.dev.

Thought of the week

Manuel, who runs People & Blogs, shared this little gem in a post about social media. And it's so true!

Web Weekly is a small newsletter, and I kid you not; every reply or tiny gesture makes my day. And even though I might still owe some of you an answer (sorry, Carlos ๐Ÿ˜…), every message feels like a genuine connection to me.

I couldn't imagine how it would be if I'd received hundreds of emails after sending out Web Weekly. ๐Ÿซฃ

Human connections can only happen at a small scale and low speed.

Did you learn something from this issue?

๐Ÿ’™ If so, join 16 other Web Weekly readers and give back with a small monthly donation on Patreon or GitHub Sponsors.

A huge thanks goes to George for sponsoring Web Weekly on a generous tier for an entire year. Thank you buddy!

This is all, friends!

Loved this email? Hated this email? I want to hear about it!

If you think something needs improvement or something sparked some joy, reply to this email because I want to know more!

And with that, take care of yourself - mentally, physically, and emotionally.

I'll see you next week! ๐Ÿ‘‹

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About Stefan Judis

Frontend nerd with over ten years of experience, freelance dev, "Today I Learned" blogger, conference speaker, and Open Source maintainer.

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