Quick Tips Tutorials
![JavaScript String replaceAll]()
JavaScript String replaceAll
Replacing a substring of text within a larger string has always been misleading in JavaScript. I wrote Replace All Occurrences of a String in JavaScript years ago and it's still one of my most read articles. The confusion lies in that
replaceonly...![Array.prototype.at]()
Array.prototype.at
Working with arrays is an essential skill in any programming language, especially JavaScript, as we continue to rely on external data APIs. JavaScript has added methods like
findand `findIndexrecently, but one syntax I love from languages like Python is retrieving values by negative indexes.When...
![Command Line trash]()
Command Line trash
One of the first commands you learn when experimenting with command line is
rm, the utility for deleting files and directories. Deletion is a core computer UI operation but operating systems use a "Trash" paradigm, where files are stored before truly deleted. With the...![Terminate Process on a Port from Command Line]()
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...
![CSS accent-color]()
CSS accent-color
For better or worse, form fields have been somewhat difficult to style with CSS. Form control display is dependent upon device, operating system, and browser, so you can imagine the difficulty in making styling easy. We have slowly been given some controls over form control...
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![How to Create a UUID in JavaScript]()
How to Create a UUID in JavaScript
The UUID identifier has been used in programming since the days a baby-faced David Walsh became a professional software engineer. My first exposure to UUIDs was via a ColdFusion app I inherited and ... the less we say about that the better. In any...
![AggregateError]()
AggregateError
One of the big themes of the web these days is concurrency, which leads to accomplishing tasks asynchronously. In doing so, the possibility of multiple errors can occur. Instead of providing a generic error, optimally you'd provide a wealth of error information. The
AggregateError...![Set a Default Node Version with nvm]()
Set a Default Node Version with nvm
As I've shown you in the past,
nvman excellent utility for switching between Node.js versions. Whether your host machine or CI, building and testing your apps on different Node versions is a necessity. I've recently found a fewnvmcommands that I found really...
![onInput Event]()
onInput Event
Coding HTML forms has been painful my entire career. Form controls look different between operating systems and browsers, coding client side and server side validation is a nightmare, and inevitably you forget something somewhere along the line. Some behaviors don't act the way you'd...
![Dark Mode in One Line of Code!]()
Dark Mode in One Line of Code!
Dark mode has seemingly become the desired visual mode for websites and mobile apps alike. Dark mode is easier on the eyes, especially for those like me who like to burn the midnight oil by coding and reading tutorials. Unfortunately not all websites offer...
