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I Don’t Hate Arrow Functions


TL;DR Arrow functions are fine for certain usages, but they have so many variations that they need to be carefully controlled to not break down the readability of the code. While arrow functions clearly have a ubiquitous community consensus (though not unanimous support!), it turns...

Creating a Python Class Generator for VS Code


My motto...when you have a problem, do something about. I hated stubbing out Python classes so I created an extension in Visual Studio Code to do it for me. In this article, let's walk through how

Planning for Responsive Images


The first time I made an image responsive, it was as simple as coding these four lines: img { max-width: 100%; height auto; /* default */ } Though that worked for me as a developer, it wasn’t the best for the audience. What happens if the the image in the src attribute is heavy? On high-end...

Smooth Scrolling for Screencasts


Let's say you wanted to scroll a web page from top to bottom programmatically. For example, you're recording a screencast and want a nice full-page scroll. You probably can't scroll it yourself because it'll be all uneven and jerky. Native JavaScript can do smooth scrolling. Here's a tiny snippet...

Downsides of Smooth Scrolling


Smooth scrolling has gotten a lot easier. If you want it all the time on your page, and you are happy letting the browser deal with the duration for you, it's a single line of CSS: html { scroll-behavior: smooth; } I tried this on version 17 of this site, and it was the second most-hated thing...

Getting Started with Python in Visual Studio Code


Python is one of the most popular and easy to learn languages, which is why it is often one of the first languages you learn. Let's see how to work with and run Python inside of Visual Studio Code!

The Dark Side of the Grid


Manuel Matuzovic makes the point that in order to use CSS grid in some fairly simple markup scenarios, we might be tempted to flatten our HTML to make sure all the elements we need to can participate on the grid. What we need is subgrid and non-buggy display: contents;, so I'd like to think in...

Styling Based on Scroll Position


Rik Schennink documents a system for being able to write CSS selectors that style a page when it has scrolled to a certain point. If you're like me, you're already on the lookout for document.addEventListener('scroll' ... and being terrified about performance. Rik gets to that right away by both...

Using React Loadable for Code Splitting by Components and Routes


In a bid to have web applications serve needs for different types of users, it’s likely that more code is required than it would be for one type of user so the app can handle and adapt to different scenarios and use cases, which lead to new features and functionalities. When this happens, it’s...

CSS Triangles, Multiple Ways


I like Adam Laki's Quick Tip: CSS Triangles because it covers that ubiquitous fact about front-end techniques: there are always many ways to do the same thing. In this case, drawing a triangle can be done: with border and a collapsed element with clip-path: polygon() with transform: rotate()...

Mask Compositing: The Crash Course


At the start of 2018, as I was starting to go a bit deeper into CSS gradient masking in order to create interesting visuals one would think are impossible otherwise with just a single element and a tiny bit of CSS, I learned about a property that had previously been completely unknown to...

Should I Use Source Maps in Production?


It's a valid question. A "source map" is a special file that connects a minified/uglified version of an asset (CSS or JavaScript) to the original authored version. Say you've got a filed called _header.scss that gets imported into global.scss which is compiled to global.css. That final CSS file...

Writing Tests for React Applications Using Jest and Enzyme


While it is important to have a well-tested API, solid test coverage is a must for any React application. Tests increase confidence in the code and helps prevent shipping bugs to users. That’s why we’re going to focus on testing in this post, specifically for React applications. By the end, you’ll...

A Bit of Performance


Here’s a great post by Roman Komarov on what he learned by improving the performance of his personal website. There’s a couple of neat things he does to tackle font loading in particular, such as adding the <link rel="preload"> tags for fonts. This will encourage those font files...

Did you know that CSS Custom Properties can handle images too?


So you might be aware of CSS Custom Properties that let you set a variable, such as a theme color, and then apply it to multiple classes like this: :root { --theme: #777; } .alert { background: var(—-theme); } .button { background: var(—-theme); } Well, I had seen this pattern so often...

Text Wrapping & Inline Pseudo Elements


I love posts like this. It's just about adding a little icon to the end of certain links, but it ends up touching on a million things along the way. I think this is an example of why some people find front-end fun and some people rather dislike it. Things involved: Cool [attribute] selectors that...

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