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Nobody is quite wrong.
17.12.2018
There are two opposing views on using non-polyfillable new web features that I find are both equally common in our industry:
Websites don't need to look the same in every browser. The concept of progressive enhancement helps with that. There are tools, even native language features, that help with...
Keep Math in the CSS
12.12.2018
There is a sentiment that leaving math calculations in your CSS is a good idea that I agree with. This is for math that you could calculate at authoring time, but specifically chose not to. For instance, if you needed a 7-column float-based grid (don't ask), it's cleaner and more intuitive:
.col...
Why isn’t it <style src=””>?
10.12.2018
The way JavaScript works is we can do scripts as an inline block:
<script>
let foo = "bar";
</script>
Or, if the script should be fetched from the network...
<script src="/js/global.js"></script>
With CSS, we can do an inline block of styles:
<style>
.foo...
Accessible SVG Icons With Inline Sprites
7.12.2018
This is a great look at accessible SVG markup patterns by Marco Hengstenberg. Here's the ideal example:
<button type="button">
Menu
<svg class="svg-icon"
role="img"
height="10"
width="10"
viewBox="0 0 10 10"
aria-hidden="true"
focusable="false">
...
CSS Selectors are Conditional Statements
6.12.2018
foo {
}
Programmatically, is:
if (element has a class name of "foo") {
}
Descendent selectors are && logic and commas are ||. It just gets more complicated from there, with things like combinators and pseudo selectors. Just look at all the ways styles can cascade.
Jeremy Keith:
If...
How to Get and Set CSS Variable Values with JavaScript
8.10.2018
CSS variables are a very welcome addition to the language, despite them being incredibly basic. Sure we could use SASS or stylus but languages should never count on developers relying on frameworks and toolkits to accomplish what we know we need. And just like every other part of a webpage,...
Build Your First Angular Website: Contact Form Validations
30.8.2018
We've created our contact form and are able to submit it using the processForm() method on our class:
<!-- form goes here -->
<form (ngSub
What bit of advice would you share with someone new to your field?
18.7.2018
The most FA of all the FAQs.
Here's Laura Kalbag:
Find what you love. Don’t worry about needing to learn every language, technique or tool. Start with what interests you, and carve your own niche. And then use your powers for good!
And my own:
Buy a domain name. Figure out how to put an HTML file...
Why 'This' in JavaScript
14.7.2018
While JavaScript is a fun and powerful language, it can be tricky and requires a proper understanding of its underlying principles to mitigate common errors.
In this post, we shall be introd
The div that looks different in every browser
13.7.2018
It's not that Martijn Cuppens used User Agent sniffing, CSS hacks, or anything like that to make this quirk div. This is just a plain ol' <div> using the outline property a la:
div {
inset 100px green;
outline-offset: -125px;
}
It looks different in different browsers because browsers...
Emojis as Icons
11.7.2018
There are lots of unicode symbols that make pretty good icons already, like arrows (←), marks (✘), and objects (✂︎).You can already colorize these like a normal font glyph. Then, there are emojis, those full-color suckers we all know about. What if you could take just the shape of an emoji...
Little Tip: Draw Your Grid in ASCII in Your CSS Comments for Quick Reference
9.7.2018
Say you declared a grid like this:
body {
display: grid;
grid-template-columns: min-content 1fr;
grid-template-rows: min-content auto min-content;
}
This depends on content, for sure, but how it's likely to play out is like this:
+---+-------------+
| | |
|...
Understanding The Underlying Processes of JavaScript’s Closures And Scope Chain
5.7.2018
When developers start exploring the JavaScript programming language, the concept of Scope and Closures can be expected to be a hurdle to their progress. The reason behind this behavior is the compl
Better rendering for variable fonts
26.6.2018
I was messing around with a variable font the other day and noticed this weird rendering issue in the latest version of Chrome where certain parts of letterforms were clipping into each other in a really weird way. Thankfully, though, Stephen Nixon has come to the rescue with a temporary hack...
How to use Error Boundaries in React 16
26.6.2018
Have you seen these in your console?
Cannot read property ‘getHostNode’ of null ????
TypeError: Cannot re
Resilient, Declarative, Contextual
25.6.2018
Keith J. Grant:
I want to look at three key characteristics of CSS that set it apart from conventional programming languages: it’s resilient; it’s declarative; and it’s contextual. Understanding these aspects of the language, I think, is key to becoming proficient in CSS.
Like HTML, unknown...
Understanding the Almighty Reducer
13.6.2018
I was reently mentoring someone who had trouble with the .reduce() method in JavaScript. Namely, how you get from this:
const nums = [1, 2, 3]
let value = 0
for (let i = 0; i < nums.length; i++) {
value += nums[i]
}
...to this:
const nums = [1, 2, 3]
const value = nums.reduce((ac, next)...
Debug JavaScript in Production with Source Maps
5.6.2018
These days, the code you use to write your application isn’t usually the same code that’s deployed in production and interpreted by browsers. Perhaps you’re writing your source code in a language t
What does the ‘h’ stand for in Vue’s render method?
30.5.2018
If you’ve been working with Vue for a while, you may have come across this way of rendering your app — this is the default in the latest version of the CLI, in main.js:
new Vue({
render: h => h(App)
}).$mount('#app')
Or, if you’re using a render function, possibly to take advantage...
How to Get a React Component’s Element
14.5.2018
JSX is an amazing pseudo-language for React, and if I’m honest, it’s what brought me to love React so much. Using React without JSX is cumbersome and frustrating, while using JSX is such an easier way to express your code. One drawback of JSX, however, is that it makes accessing...