Terminate Process on a Port from Command Line
Once a week I have to deal with a zombie process or try to start a process that's already running on its designated port. In most cases I use macOS's Activity Monitor to kill the process, which is time-consuming. What if we could just kill a process on a given port from command line? Well, we can!
To terminate a process on a given port, install kill-port
and starting nuking those zombies via:
# yarn global add kill-port
# Kill processes on multiple ports
kill-port 6060 8000
If you want to programmatically kill a port that you want to ensure your app will run on, you can do that as well:
const kill = require('kill-port')
kill(6060, 'tcp')
.then(console.log)
.catch(console.log)
I look forward to incorporating this library into my Node.js sites so that I can clear the way for a given port and avoid zombie processes.
MooTools has always gotten a bit of grief for not inherently using and standardizing namespaced-based JavaScript classes like the Dojo Toolkit does. Many developers create their classes as globals which is generally frowned up. I mostly disagree with that stance, but each to their own. In any event...
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...
One of the most used JavaScript widgets over the past decade has been the text box autocomplete widget. Every JavaScript framework has their own autocomplete widget and many of them have become quite advanced. Much like the placeholder attribute's introduction to markup, a frequently used...
The jQuery homepage has a pretty suave tooltip-like effect as seen below:
Here's how to accomplish this same effect using Dojo.
The XHTML
The above HTML was taken directly from the jQuery homepage -- no changes.
The CSS
The above CSS has been slightly modified to match the CSS rules already...