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Random Notes from a JAMstack Roundtable
23.9.2019
I hosted a JAMstack roundtable discussion at Web Unleashed this past weekend. Just a few random notes from that experience.
I was surprised at first that there really is confusion that the "M" in Jamstack stands for "Markdown" (the language that compiles to HTML) rather than "Markup" (the "M"...
eToro Aims to Put Derivatives on the Blockchain With Lira Programming Language
15.9.2019
At the Ethereal Summit Tel Aviv 2019, project lead Omri Ross said the new programming language will reduce the risks involved in settling financial contracts and enable the creation of new derivative products
Some HTML is “Optional”
11.9.2019
There is a variety of HTML that you can just leave out of the source HTML and it's still valid markup.
Doesn't this look weird?
<p>Paragraph one.
<p>Paragraph two.
<p>Paragraph three.
It does to me, but the closing </p> tags are optional. The browser will detect...
Vulnerability Fixed in Facebook Contract Language for Libra Cryptocurrency
10.9.2019
The vulnerability in the Move IR compiler allows malicious actors to introduce executable code to their smart contracts," OpenZepplin’s CEO Demian Brener told CoinDesk
Ziktalk, Foreign Language Learning Platform, Announces to List Its Cryptocurrency ZIK on ProBit Exchange
9.9.2019
Recently, Ziktalk, a Foreign language learning platform declared that its cryptocurrency token ZIK would be listed on ProBit Exchange on Monday, September 9, 2019. Precisely, it will be accessible for exchanging from Monday, September 9, 2019, at 15:00 Korea Standard Time. Also, it is the second...
Need to scroll to the top of the page?
2.9.2019
Perhaps the easiest way to offer that to the user is a link that targets an ID on the <html> element. So like...
<html id="top">
<body>
<!-- the entire document -->
<a href="#top">Jump to top of page</a>
...
Bitcoin Cash Innovation Accelerates With Cashscript High-Level Language
26.8.2019
Software developers Rosco Kalis and Gabriel Cardona have been steadily working on Cashscript, a high-level programming language for Bitcoin Cash. When the language is tied to certain opcodes, specific schemes can be built that allow for autonomous and decision-based transactions. While testing...
Multiplayer Tic Tac Toe with GraphQL
23.8.2019
GraphQL is a query language for APIs that is very empowering for front-end developers. As the GraphQL site explains it, you describe your data, ask for what you want, and get predictable results.
If you haven’t worked with it before, GraphQL might be a little confusing to grok at first glance....
Crypto Exchange: Taiwan to Become Libra’s Chinese-language Capital
22.8.2019
Formosa Boulevard, a station of Kaohsiung MRT located in Sinsing District, Kaohsiung, Taiwan. A Taiwanese cryptocurrency exchange wants to join Facebook’s Libra Association – and believes that Taiwan will become Libra’s de facto center of gravity in Chinese-speaking countries.
Per a report from...
SegWit Creator Introduces New Language for Bitcoin Smart Contracts
21.8.2019
Bitcoin Core developer Peter Wuille unveiled a new Bitcoin smart contract programming language called Miniscript
Pieter Wuille Unveils ‘Miniscript,’ A New Smart Contract Language for Bitcoin
20.8.2019
Smart contracts could soon get a boost in bitcoin as prominent programmer Pieter Wuille has unveiled a new coding language designed specifically for their use. Posted to the bitcoin developer mailing list Monday, the ‘Miniscript’ language aims to make it easier for programmers to write...
Staggered CSS Transitions
14.8.2019
Let's say you wanted to move an element on :hover for a fun visual effect.
@media (hover: hover) {
.list--item {
transition: 0.1s;
transform: translateY(10px);
}
.list--item:hover,
.list--item:focus {
transform: translateY(0);
}
}
Cool cool. But what if you had several list...
All the New ES2019 Tips and Tricks
13.8.2019
The ECMAScript standard has been updated yet again with the addition of new features in ES2019. Now officially available in node, Chrome, Firefox, and Safari you can also use Babel to compile these features to a different version of JavaScript if you need to support an older browser.
Let’s look...
Let Mavo Shine in Building Interactive Web Applications
6.8.2019
As you could guess from the title, this tutorial is dedicated to Mavo: a new, approachable way to create complex, reactive, persistent web applications just by writing HTML and CSS, without a single line of JavaScript and no server backend.
🐇 Follow the white rabbit!
Mavo is developed...
Can you nest @media and @support queries?
5.8.2019
Yes, you can, and it doesn't really matter in what order. A CSS preprocessor is not required. It works in regular CSS.
This works:
@supports(--a: b) {
@media (min-width: 1px) {
body {
background: red;
}
}
}
And so does this, the reverse nesting of the above:
@media (min-width:...
How much specificity do @rules have, like @keyframes and @media?
31.7.2019
I got this question the other day. My first thought is: weird question! Specificity is about selectors, and at-rules are not selectors, so... irrelevant?
To prove that, we can use the same selector inside and outside of an at-rule and see if it seems to affect specificity.
body {
background:...
Intrinsically Responsive CSS Grid with minmax() and min()
31.7.2019
The most famous line of code to have come out of CSS grid so far is:
grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
Without any media queries, that will set up a grid container that has a flexible number of columns. The columns will stretch a little, until there is enough room...
The Simplest Way to Load CSS Asynchronously
30.7.2019
Scott Jehl:
One of the most impactful things we can do to improve page performance and resilience is to load CSS in a way that does not delay page rendering. That’s because by default, browsers will load external CSS synchronously—halting all page rendering while the CSS is downloaded...
Run useEffect Only Once
30.7.2019
React has a built-in hook called useEffect. Hooks are used in function components. The Class component comparison to useEffect are the methods componentDidMount, componentDidUpdate, and componentWillUnmount.
useEffect will run when the component renders, which might be more times than you think....
Optional Chaining
29.7.2019
For all of the improvements that the JavaScript language has added over the past few years, like the spread operator, default argument values, and arrow functions, there are still a few features I’d love to see implemented. On such feature is optional chaining. Optional chaining allows...