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Object.entries
20.4.2021
Navigating and managing data structures is a really important skill for every level of engineer to have and improve upon. Over the years, the JavaScript language has continued to provide more methods for managing data structures, from Object.keys to Object.values and so on. One of my favorites...
How to Mine Ethereum
25.3.2021
Note: I expect a large number of people to object to cryptocurrency mining’s energy use and I totally understand. ...
Bulletproof flag components
29.1.2021
A clever use of CSS grid from Jay Freestone to accomplish a particular variation of the media object design pattern (where the image is centered with the title) without any magic numbers anything that isn’t flexible and resiliant.
The trick …
The post Bulletproof flag components...
React.isValidElement
14.12.2020
Knowing what input type you’ve received is hugely important in JavaScript, which is a big reason for Flow and TypeScript’s rise. One such case where it’s useful to know what an object represents is if the input is a string or a React element. To detect if an object is a React...
It’s all relative.
10.12.2020
I remember sitting in the back seat of our family’s Subaru station wagon. I was six and this was long before child carseats were a thing. My dad was at the wheel and my mom played 20 Questions with me while we drove to some vacation spot I can’t even remember.
It was my mom’s turn...
A Primer on the Different Types of Browser Storage
21.10.2020
In back-end development, storage is a common part of the job. Application data is stored in databases, files in object storage, transient data in caches… there are seemingly endless possibilities for storing any sort of data. But data storage isn’t limited only to the back end. The front end (the...
How to Conditionally Add Attributes to Objects
16.10.2020
JavaScript is full of tricks that you don’t know you want until you … want … them. Or maybe just until you see them. One trick I recently realized was conditionally adding attributes to React elements. Of course this trick essentially boils down to conditionally adding properties...
The Flavors of Object-Oriented Programming (in JavaScript)
28.9.2020
In my research, I've found there are four approaches to Object-Oriented Programming in JavaScript. Which methods should I use? Which one is "the best" way? Here I'll present my findings along with information that may help you decide which is right for you.
The post The Flavors of Object-Oriented...
Beyond Media Queries: Using Newer HTML & CSS Features for Responsive Designs
4.9.2020
Beyond using media queries and modern CSS layouts, like flexbox and grid, to create responsive websites, there are certain overlooked things we can do well to make responsive sites. In this article, we’ll dig into a number tools (revolving around HTML and CSS) we have at the ready, from responsive...
How to Make a Media Query-less Card Component
1.9.2020
Fun fact: it’s possible to create responsive components without any media queries at all. Certainly, if we had container queries, those would be very useful for responsive design at the component level. But we don’t. Still, with or without container queries, we can do things to make our components...
Promise.allSettled
3.8.2020
The Promise object has many useful functions like all, resolve, reject, and race — stuff we use all the time. One function that many don’t know about is Promise.allSettled, a function that fires when all promises in an array are settled, regardless of whether any of the promises...
Binding Arguments with Bind
20.7.2020
One of my favorite and most essential Function method is bind, a function we added to MooTools when it wasn’t featured in the JavaScript language itself. We often think of using bind to simply bind a method’s call to its host object, but did you know you can also bind arguments with...
Fluid Images in a Variable Proportion Layout
3.7.2020
Creating fluid images when they stand alone in a layout is easy enough nowadays. However, with more sophisticated interfaces we often have to place images inside responsive elements, like this card:
For now, let’s say this image is not semantic content, but only decoration. That’s...
Get Programmatic Control of your Builds with Netlify Build Plugins
27.5.2020
Today at Jamstack_Conf, Netlify announced Build Plugins. What it does is allow you to have particular hooks for events within your build, like when the build starts or ends. What’s nice about them is that they’re just a plain ‘ol JavaScript object, so you can insert some logic...
Turning a Fixed-Size Object into a Responsive Element
11.5.2020
I was in a situation recently where I wanted to show an iPhone on a website. I wanted users to be able to interact with an application demo on this “mock” phone, so it had to be rendered in CSS, not an image. I found a great library called marvelapp/devices.css. The library implemented the device...
CSS2JS
20.3.2020
To add inline styles on an element in JSX, you have to do it in this object syntax, like:
<div style={{
fontSize: 16,
marginBottom: "1rem"
}}Content
</div
That might look a little weird to us folks who are so used to the CSS syntax, where it is font-size (not fontSize), margin-bottom...
A Guide to Handling Browser Events
13.3.2020
In this post, Sarah Chima walks us through how we can work with browser events, such as clicking, using JavaScript. There’s a ton of great info in here! If JavaScript isn’t your strong suit, I think this is the best explanation of event handling that I’ve read in quite some time.
When an event...
Centering a div That Maintains Aspect-Ratio When There’s Body Margin
18.2.2020
Andrew Welch had a little CSS challenge the other day to make an ordinary div:
• centered vertically + horizontally• scales to fit the viewport w/ a margin around it• maintains an arbitrary aspect ratio• No JS
There's a video in that tweet if it helps you visualize the challenge. I saw Paul...
Lazy Object Initialization
17.2.2020
The Firefox DevTools underlying code, which is written with JavaScript and HTML, is a complex application. Due to the complexity and amount of work going on, the DevTools team has done everything they can to load as little as possible. Furthermore the team has a system of lazily importing...
Timeless Web Dev Articles
18.1.2020
Pavithra Kodmad asked people for recommendations on what they thought were some of the most timeless articles about web development that have changed their perspective in some way. Fun! I'm gonna scour the thread and link up my favorites (that are actually articles, although not all of them...