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How to Earn Interest with Bitcoin
5.8.2020
When I was young I remember looking at my bank book and seeing nice interest payments for cash I had in the bank. Fast forward to today and banks are giving essentially nothing for interest — your money just sits there collecting dust. In an ideal world you could put it into the stock market...
Promise.allSettled
3.8.2020
The Promise object has many useful functions like all, resolve, reject, and race — stuff we use all the time. One function that many don’t know about is Promise.allSettled, a function that fires when all promises in an array are settled, regardless of whether any of the promises...
Posíláme na Mars robota velkého jak auto. Sledujte start rakety online!
30.7.2020
Dnes ve 13:50 našeho času by měl proběhnout start rakety Atlas V 541, která k Marsu vyšle nové průzkumné vozidlo zvané Perseverance. Startovat ze bude z Mysu Canaveral a celou akci můžete sledovat online s českým komentářem:
Přímý přenos přinášíme ve spolupráci s Kosmonautix.cz a Mall.tv
Tips for Starting with Bitcoin and Cryptocurrencies
21.7.2020
One of the most rewarding experiences of my life, both financially and logically, has been buying and managing cryptocurrencies like Bitcoin, Litecoin, Ethereum. Like learning any other new tech, I made rookie mistakes along the way, but learned some best practices along the way. Check out these...
Binding Arguments with Bind
20.7.2020
One of my favorite and most essential Function method is bind, a function we added to MooTools when it wasn’t featured in the JavaScript language itself. We often think of using bind to simply bind a method’s call to its host object, but did you know you can also bind arguments with...
5 Most Common Developer Portfolio Mistakes (Sponsored)
20.7.2020
A portfolio site is one of the best marketing and sales tools you as a web developer have in your arsenal. And if it’s set up right, it’ll save you a bunch of time having to:  Chase down new clients,  Spend time convincing them to work with you, Answer questions about your experience as...
Gadget za 25 000 dolarů umožní ukrást téměř každé moderní auto
20.7.2020
Bulharská společnost SOS Autokeys prodává zařízení zvané SOS Key Tool, které dokáže emulovat signál celé řady FOB klíčů. Jinak řečeno, umožní vám ukrást téměř každé moderní auto.
Výše jmenovaná firma sice tvrdí, že rozhodně nechce dělat nic nelegálního, nicméně její zákazníci podle dostupných
Lazy Load IFRAMEs
13.7.2020
We’ve known for a decade that lazy loading resources like JavaScript, CSS, and especially images is a massive performance win for web pages. At first we used tricks and JavaScript to do the lazy loading, but more recently native image lazy loading has debuted in browsers. Did you know that...
Easy Stock Market Quotes with marketstack (Sponsored)
12.7.2020
The stock market is wild right now, at least in the United States. Between pandemic, political events, and everything else going on, the stock market is one swing after another. There are a host of services that give you stock quotes but I don’t trust them; I feel like they delay information...
Automatically Rebase GitHub Pull Requests
10.7.2020
Working on an open source project with a thriving contribution community is one of the great joys I have at Mozilla. In leading this charge, I get to meet amazing people of all different skill sets and interests, as well as different points of view. In the end I receive hundreds of pull requests...
Get Worldwide Postal Code Data with Zip Code API (Sponsored)
6.7.2020
Accurate shipping and location information is well worth the price you need to pay for it. You can sell that information, you can target consumers to perfection, and save yourself loads of frustration when it comes to shipping. Creating your own location API isn’t worth the time — there...
JavaScript in SVGs
30.6.2020
SVGs are such an amazing tool for creating custom fonts, animations, size-reduced graphics, and more. They’re part HTML, part image, and all awesome. Many websites have moved toward SVG instead of JPG, GIF, and PNG due to the flexibility that SVG provides. Whats one example of that...
Hide Scrollbars During an Animation
24.6.2020
CSS still can’t animate to auto dimensions.
.dropdown {
transition: 0.2s;
height: 0;
}
.dropdown.open {
/* the height will change, but it won't animate. */
height: auto;
}
There is JavaScript trickery you can try. Brandon Smith outlined several techniques here a little while back....
CSS background-repeat: round
23.6.2020
The CSS spec is full of gems that sneak their way past most of us web designers and developers. Stuff like :focus-within, prefers-reduced-motion, and prefers-color-scheme suddenly make their way into CSS without us really finding out for months or years. One such example is background-repeat:...
Web Engine Diversity and Ecosystem Health
16.6.2020
As front-end developers, our job is working with browsers. Knowing how many we have and the health of them is always of great interest. As far as numbers go, we have fewer recently than we have in the past. It’s only this month that Edge is starting to auto-update browsers to the Chromium...
Kotlin Coroutines and Delay
11.6.2020
Whenever I suspect that there’s a timing conflict causing a problem with rendering and directives, I usually opt for a JavaScript setTimeout with a delay. The setTimeout code never makes it to production, but it does help me to understand if my code is the problem or if there’s a timing...
The Trickery it Takes to Create eBook-Like Text Columns
8.6.2020
There’s some interesting CSS trickery in Jason Pamental’s latest Web Fonts & Typography News. Jason wanted to bring swipeable columns to his digital book experience on mobile. Which brings up an interesting question right away… how do you set full-width columns that...
3 Great Ways to Monetize Content
8.6.2020
Monetizing content on the web usually boils down to one thing: advertisements. The problem with adding advertisements to your website, especially from the popular ad services, is that they can be slow and they certainly don’t protect user privacy. That’s where alternative monetizing...
Are You a Developer?
27.5.2020
“You’re not really a developer. Sooner or later people are going to realize you don’t know what you’re talking about. You’re just not good enough.” You’ve probably had thoughts like these at one point or another. You’ve never heard someone else tell you that you’re not a developer, but you’re still...
Devising the Cloak of Invisibility in JavaScript
25.5.2020
Steganography. The art of hiding something right under your nose. For as long as humans have been alive, we’ve been trying to hide things — whether it’s our last slice of pizza or the location of a buried treasure. Do you remember the cool invisible lemon ink trick, where we’d write the secret...