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Tabs: It’s Complicated™
19.4.2019
I've said before one quick and powerful thing you can learn as a front-end developer just getting starting with JavaScript is changing classes.
const button = document.querySelector(".my-button");
const element = document.querySelector(".content");
button.addEventListener("click", function()...
Open FaceTime Call from Command Line
11.4.2019
Communication tools are always associated with UIs, and for good reason — if you want communication to be easy and intuitive, you need easy and intuitive interfaces. We need communication tools to provide the lowest barrier of entry, since not all users will be tech savvy. For tech experts...
In Defense of the Ternary Statement
10.4.2019
Some months ago I was on Hacker News (as one does) and I ran across a (now deleted) article about not using if statements. If you’re new to this idea (like I was), you’re in a for a real treat. Just search for "if statements" on Hacker News. You'll get articles proposing that you might not need...
The Ultimate Guide to JavaScript Algorithms: Range Sum
5.4.2019
Sometimes, while performing mathematical calculations, there comes the need to sum up a range of numbers. Some programming languages make this easy by implementing helper functions that enable one
You probably don’t need input type=“number”
29.3.2019
Brad Frost wrote about a recent experience with a website that used <input type="number">:
Last week I got a call from my bank regarding a wire transfer I had just scheduled. The customer support guy had me repeat everything back to him because there seemed to be a problem with...
Set Branch Alias with Git
28.3.2019
Version control systems can be difficult to use, especially when you don’t use a UI app. Just think about main branch or revision names: svn uses “trunk”, git uses “master”, and mercurial (hg) uses “tip”. I need to switch between mercurial and...
Build a Decentralized Web Chat in 15 Minutes
25.3.2019
In this 15 minute tutorial we’re going to build a simple decentralized chat application which runs entirely in a web browser. All you will need is a text editor, a web browser, and a basic knowledge of how to save HTML files and open them in the browser. We’re going...
Creating a Custom Element from Scratch
20.3.2019
In the last article, we got our hands dirty with Web Components by creating an HTML template that is in the document but not rendered until we need it.
Next up, we’re going to continue our quest to create a custom element version of the dialog component below which currently only uses...
Using Local with Flywheel
19.3.2019
Have you seen Local by Flywheel? It's a native app for helping set up local WordPress developer environments. I absolutely love it and use it to do all my local WordPress development work. It brings a lovingly designed GUI to highly technical tasks in a way that I think works very well. Plus...
I Don’t Hate Arrow Functions
19.3.2019
TL;DR Arrow functions are fine for certain usages, but they have so many variations that they need to be carefully controlled to not break down the readability of the code. While arrow functions clearly have a ubiquitous community consensus (though not unanimous support!), it turns...
Write Your First Service Worker in 5 Minutes
18.3.2019
What is a service worker? A service worker is a little file that will allow you to cache files and other assets on a user’s machine. How is this different from server-side caching? Because the assets are stored on a user’s machine, rather than a server, there is no need to go across...
Perfect Image Optimization for Mobile with Optimole
14.3.2019
(This is a sponsored post.)
In 2015 there were 24,000 different Android devices, and each of them was capable of downloading images. And this was just the beginning. The mobile era is starting to gather pace with mobile visitors starting to eclipse desktop. One thing is certain, building...
How to Set Commit Author
13.3.2019
I’ve worn dozens of hats on a dozen different teams during my time at Mozilla, but none has been as rewarding and challenging as community management. Whether it’s mentoring students, welcoming new contributors, or reviewing pull requests, there’s always so much to be done....
Getting into GraphQL with AWS AppSync
12.3.2019
GraphQL is becoming increasingly popular. The problem is that if you are a front-end developer, you are only half of the way there. GraphQL is not just a client technology. The server also has to be implemented according to the specification. This means that in order to implement GraphQL into your...
The Dark Side of the Grid
10.3.2019
Manuel Matuzovic makes the point that in order to use CSS grid in some fairly simple markup scenarios, we might be tempted to flatten our HTML to make sure all the elements we need to can participate on the grid. What we need is subgrid and non-buggy display: contents;, so I'd like to think in...
The Bottleneck of the Web
5.3.2019
Steve Souders, "JavaScript Dominates Browser CPU":
Ten years ago the network was the main bottleneck. Today, the main bottleneck is JavaScript. The amount of JavaScript on pages is growing rapidly (nearly 5x in the last 7 years). In order to keep pages rendering and feeling fast, we need to focus...
Learning to Learn
4.3.2019
There’s been a lot of talk recently about whether or not you need a degree to be in tech (spoiler: you don’t). But please don’t take this to mean you don’t need any kind of education to be in tech, because by not getting a degree, you’re opting to replace the imposed learning structure of...
Understanding Memoization In JavaScript
4.3.2019
As our applications grow and begin to carry out heavier computations, there comes an increasing need for speed ( ????️ ) and the optimization of processes becomes a necessity. When w
Do CSS Custom Properties Beat Sass Loops?
2.3.2019
I reckon that a lot of our uses of Sass maps can be replaced with CSS Custom properties – but hear me out for a sec.
When designing components we often need to use the same structure of a component but change its background or text color based on a theme. For example, in an alert, we might need...
Keen makes it a breeze to build and ship customer-facing metrics
28.2.2019
(This is a sponsored post.)
Keen is an analytics tool that makes it wonderfully easy to collect data. But Keen is unique in that it is designed not just to help you look at that data, but to share that data with your own customers! Customer-facing metrics, as it were.
Keen works just the way...