Social Networks for the life of the world
Something new I learned recently.
I started using UNIX when I loaded the 7th edition nine-track tape onto a PDP-11 in a university lab. The shell — bin/sh or as we put it back then, sh(1) — had a history command that would regurgitate recent command lines. I got in the habit of typing history | grep whatever to find … Read more
Every web site needs one post with a silly clickbait title. But this is good stuff. I take a med called a statin. I take the generic version, and I’m lucky that my health insurance plan covers the cost. But once the local CVS refilled it, and when I went to pick it up they … Read more
Do you need to install an old version of MariaDB on Ubuntu? Maybe you need to do some testing. Here’s how. Visit https://mariadb.com/downloads/ and choose your package and OS. You’ll download a tar fie. Extract the tar file with tar xf mariadb*.tar. Change your working directory to the extracted directory. cd mariadb*debs Set up your … Read more
Sometimes, upon adding indexes to MariaDb or MySQL tables with columns with zero-default dates you’ll get an error message like this: This happens because your server’s default sql_mode includes the NO_ZERO_DATE value. It is prevalent when working on WordPress indexes using phpmyadmin or some other MySQL client program. To prevent it, change the sql_mode before … Read more
The Firefox browser’s WebRTC and MediaRecorder functionality can handle H.264 (Advanced Video Codec) coding and decoding, but only with H.264’s constrained baseline profile. Other, higher, profiles just don’t work. And in Firefox’s WebRTC implementation (v87) attempts to use higher profiles fail more-or-less silently. Firefox works around all the patent issues with H.264 by using an … Read more
The WebRTC (browser-to-browser realtime conferencing) standard landed as a W3C recommendation version 1.0 on 26-January-2021. Thanks everybody who worked on it! Maybe there’s a future without adapter.js !
There’s a sweet little function in web browsers called the Web Beacon API. It’s a simplified version of the XHR or Fetch API that does a fire-and-forget POST operation to a server. It’s nice for a few reasons. First, browser Javascript (front-end Javascript) can use it without any need to process results coming back. Just … Read more
This is a series of posts about something new I learned.
Working with browser Javascript on mobile devices, I found myself needing to report exceptions back to a server. (It’s hard to see the browser console log on a mobile device without connecting it to a desktop machine). Here’s what I did to make a suitable object that can be serialized. To use this you’ll need … Read more
I’ve been messing around with the browser API navigator.mediaDevices.getDisplayMedia(). The question I hoped to answer: can I capture the content in some computer display surface and push it through the same sorts of process that I use with .getUserMedia()? I tested on Google Chrome 84. Answer: yes. It has some quirks. It doesn’t need, and … Read more