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[článek] Data od operátorů, aplikace i náramky. Státy po celém světě zavádějí digitální karantény
26.3.2020
[6 minut čtení] Řada států postižených infekcí COVID-19 začala v boji s nemocí používat digitální technologie. Jak moc při tom zasahují do soukromí svých občanů? Tchaj-wan, Belgie, Itálie, Rakousko, Německo, Polsko, Izrael, Hong Kong, Singapur, Velká Británie. To jsou příklady zemí, které...
Did You Know the Ordered List Element Has Start and Reversed Attributes?
24.3.2020
I sure didn't! Tomek Sułkowsi shows how we can reverse the numbering of ordered lists with a simple HTML attribute:
<ol reversed<liApple</li<liBanana</li<liPear</li</ol
CodePen Embed Fallback
And the start attribute can be added to begin the list at a number other...
Emojis as Favicons
24.3.2020
Lea Verou had a dang genius idea to use an emoji as a favicon. The idea only recently possible as browsers have started supporting SVG for favicons. Chuck an emoji inside an SVG <text element and use that as the favicon.
Now that all modern browsers support SVG favicons, here's how...
Upbit, Bithumb, Korbit, Coinone Hand Data to Telegram Nth Room Investigators
24.3.2020
Police investigating the so-called Telegram “Nth Room” pedophile ring have served search warrants to most of South Korea’s leading crypto exchanges – including the “big four” of Upbit, Bithumb, Korbit and Coinone – as they attempt to track down people who paid to watch video footage featuring...
Over 172 Million Weibo Users Personal Data Is For Sale on Dark Web
23.3.2020
Chinese social media giant Weibo sees massive data breach, with data from millions of user accounts for sale for Bitcoin on the dark web
CSS :nth-of-class selector
23.3.2020
That's not a thing.
But it kinda is!
Bram covers how frustrating .bar:nth-child(2) is. It's not "select the second element of class .bar." It's "select the second element if it also has the class .bar." The good news? There is a real selector that does the former:
:nth-child(2 of .bar) { }
Safari...
Hackers Steal and Publish Medical Data of Firm Researching Coronavirus Using Ransomware
23.3.2020
A UK firm researching the coronavirus was compromised by ransomware, the hackers published sensitive data online
Building a Real-Time Chat App with React and Firebase
23.3.2020
In this article, we’ll cover key concepts for authenticating a user with Firebase in a real-time chat application. We’ll integrate third-party auth providers (e.g. Google, Twitter and GitHub) and, once users are signed in, we’ll learn how to store user chat data in the Firebase Realtime Database...
Blockchain Digital ID — Putting People in Control of Their Data
23.3.2020
Blockchain ID is a big player in the battle for user data, as it “adopts a user-centric approach, eliminating central points of failure by empowering individuals with self-sovereign possession over their own data”
‘Buy Bitcoin’ Searches Skyrocket, Exchange Volumes Spike, Crypto Account Signups Swell 83% As Coronavirus Fears Heighten
22.3.2020
Exchange data and statistics from Google Trends, Twitter, and Baidu show that despite the recent price drop people are looking to buy bitcoin. During the week of the crypto market massacre that started on March 12, Coinbase broke traffic records and witnessed considerable trade volumes. Similarly...
Auto-Archival
20.3.2020
I'm sure most of us have used the ol' Wayback Machine to access some site that's gone offline. I don't actually know how it decides what sites to archive and when, but you can tell it to save pages. There is UI for it right on its homepage.
Also, there is a little trick...
Typing...
Client-Side Image Editing on Mobile
20.3.2020
Michael Scharnagl:
Ever wanted to easily convert an image to a grayscale image on your phone? I do sometimes, and that's why I build a demo using the Web Share Target API to achieve exactly that.
For this I used the Service Worker way to handle the data. Once the data is received on the client,...
Onchain Data Suggests Bitcoin Sell-Off Fueled by New Investors
20.3.2020
While the covid-19 outbreak has caused economic calamity, cryptocurrencies have regained some of the losses that devastated digital currency markets on March 12. A recent report published by the researchers at Coin Metrics notes the “crypto asset sell-off was driven by short-term...
CSS2JS
20.3.2020
To add inline styles on an element in JSX, you have to do it in this object syntax, like:
<div style={{
fontSize: 16,
marginBottom: "1rem"
}}Content
</div
That might look a little weird to us folks who are so used to the CSS syntax, where it is font-size (not fontSize), margin-bottom...
[aktualita] Neomezená data zapnulo 233 tisíc klientů T-Mobilu, objem přenesených dat stoupl o 36 %
20.3.2020
Od středy do pátečního dopoledne si neomezená data ze speciální nabídky T-Mobilu aktivovalo 233 tisíc zákazníků. Na dotaz Lupy to uvedl Jiří Janeček z tiskového oddělení operátora. Jde o počet fyzických klientů a malých podnikatelů, který operátor zapnutí neomezených dat v době epidemie koronaviru...
React Suspense in Practice
19.3.2020
This post is about understanding how Suspense works, what it does, and seeing how it can integrate into a real web app. We'll look at how to integrate routing and data loading with Suspense in React. For routing, I'll be using vanilla JavaScript, and I'll be using my own micro-graphql-react GraphQL...
Na Flightradar24 se objevily zvláštní modré ikonky letadel. Služba čerpá data z nového zdroje
19.3.2020
Aerolinky postupně omezují spoje, nebo pendlují nad Evropou téměř poloprázdné, aby nepřišly o drahocenné sloty na klíčových letištích.
Pokud v těchto dnech navštívíte Flightradar24, který monitoruje prakticky v živém přenosu leteckou dopravu a zobrazuje ji nad mapou světa, zejména nad Atlantikem a
What Does `playsinline` Mean in Web Video?
18.3.2020
I got myself confused about this the other day, went around searching for an answer and came up empty on finding something clear. The answer actually is quite clear and I feel a little silly for not knowing it.
With it in place, like this:
<video src="..." controls playsinline</video
Mobile...
Data Sets You Free: Self-Quarantine Diary, Day 3
18.3.2020
Coronavirus underscores the value of mass trustworthy data to aid community decisions on our economic and social wellbeing, says CoinDesk's Michael Casey
Bitcoin Hodlers Not to Blame for Record 50% Price Plunge, Data Reveals
18.3.2020
It is young Bitcoins which are involved in the trading frenzies of 2019 and 2020, new findings suggest