David Walsh Blog
How to Create a Screen Recording with Quicktime
Creating screen recordings is an essential skill for web developers. Screen recordings can illustrate new features, bugs, or a variety of other ideas. I'm often asked what app I use to create screen recordings and people are shocked when I tell them Quicktime!
Restart Mac From Command Line
Restarting and shutting down a computer remotely is a frequent task for remote system administrators. As someone that writes many shell scripts, I also find myself automating system restarts. Let's look at a few ways to restart Mac systems from command line!Restart a Local MacTo...
How to Use Your Domain on Bluesky
Bluesky is a hot new social networking platform that functions like Twitter from Twitter's original founder. New users are flooding into the platform as a respite from Elon Musk's vision of Twitter and the fumbles that have happened since his takeover. Upon signing up...
10 Great Multipurpose WordPress Themes
Multipurpose themes are flexible WordPress templates that can be used to create virtually any kind of website. They are often best-sellers, and because they are so popular there are a lot of them to choose from. Too many in fact unless you have time to spare...
How to Blur Faces in a Video from Command Line
Privacy is always incredibly important, especially with visual media where you may not have the permission of individuals in the video. If you're filming something in public, it's likely you'll catch someone's face who simply doesn't want or need to be identified. This recently...
CSS content-visibility
The CSS language is full of small gaps which are frustrating to navigate. Between CSS properties to hide a container and its contents, there is still room for improvement.
visibility: hidden
keeps height and width integrity whiledisplay: none
on a container hides everything. You can...How to Get a Computer’s Hardware ID
Cheating in online games is a huge issue these days -- just ask anyone playing PUBG. Cheaters aren't difficult for players to spot but vendors oftentimes don't do enough to punish these villains. Krafton recently announced they would start banning cheaters by hardware ID...
JavaScript Array Group
Managing, sorting, and manipulating data with JavaScript is a skill we've often delegated to third party libraries like lodash. As the JavaScript language progresses, however, these features eventually get. added to the JavaScript specification. Two such APIs for grouping of
Array
data are `Array.prototype.group
...How to Get a Base64 Version of a File From Command Line
A while back I wrote an article on how to Convert Image to Data URI with JavaScript. It's a neat trick developers can use for any number of reasons. Instead of abusing canvas, however, why not simply get the base64 data from...
How to Get Mac Battery Level from Command Line
I'm a big fan of having as much information as I can get within the command line. I couldn't go without knowing which git branch I'm on, for example. Another important piece of information I like having is my current battery percentage.To get...
Popular Features
39 Shirts – Leaving Mozilla
In 2001 I had just graduated from a small town high school and headed off to a small town college. I found myself in the quaint computer lab where the substandard computers featured two browsers: Internet Explorer and Mozilla. It was this lab where I fell...
Interview with a Pornhub Web Developer
Regardless of your stance on pornography, it would be impossible to deny the massive impact the adult website industry has had on pushing the web forward. From pushing the browser's video limits to pushing ads through WebSocket so ad blockers don't detect them, you have...
Welcome to My New Office
My first professional web development was at a small print shop where I sat in a windowless cubical all day. I suffered that boxed in environment for almost five years before I was able to find a remote job where I worked from home. The first...
How to Create a RetroPie on Raspberry Pi – Graphical Guide
Today we get to play amazing games on our super powered game consoles, PCs, VR headsets, and even mobile devices. While I enjoy playing new games these days, I do long for the retro gaming systems I had when I was a kid: the original Nintendo...
Conquering Impostor Syndrome
Two years ago I documented my struggles with Imposter Syndrome and the response was immense. I received messages of support and commiseration from new web developers, veteran engineers, and even persons of all experience levels in other professions. I've even caught myself reading the post...
Being a Dev Dad
I get asked loads of questions every day but I'm always surprised that they're rarely questions about code or even tech -- many of the questions I get are more about non-dev stuff like what my office is like, what software I use, and oftentimes...
JavaScript Promise API
While synchronous code is easier to follow and debug, async is generally better for performance and flexibility. Why "hold up the show" when you can trigger numerous requests at once and then handle them when each is ready? Promises are becoming a big part of the JavaScript world...