JavaScript

There are quite a few tools to avoid *needing* a database these days, static site generators chief among them. So then what are the things that push toward or require a database?

I can imagine being asked at an interview: What’s the difference between JavaScript engines and JavaScript runtimes? Nicholas C. Zakas says: A JavaScript engine implements ECMAScript as defined by the ECMA-262 standard. ECMA-262 defines the core functionality of JavaScript without any affordances for input or output. A JavaScript runtime is an ECMAScript host that embeds […]

How many ways are there to add an event (like a click) to an element? Andrea Giammarchi covers them. The first two are basically the same (hence the “2.5” in the title). I’d say the vast majority of event handling is through addEventListener, but the clearly listed advantages/disadvantages Andrea goes through are worth understanding. The […]

Pretty interesting trickery here, encoding a secret message in an emoji that you automatically get when you copy/paste it from Paul Butler. Most unicode characters do not have variations associated with them. Since unicode is an evolving standard and aims to be future-compatible, variation selectors are supposed to be preserved during transformations, even if their […]

For who-knows-what reason color inputs only show a color swatch, not a string representation of the color. Let’s see if we can fix that.

The typical approach for these inputs is using multiple HTML inputs, one for each character. But is that a good idea?

Leaflet.js is a free open-source mapping library. We’ll look at how to use it to create a basic map with location points of cats up for adoption.

This helps load in data just *before* a user gets to it, and it works with non-root containers and horizontal scrolling.

Brian Muenzenmeyer on new(ish) things in Node: Through the efforts of contributors over several recent majors, great new features are landing. Each is useful in isolation, but put together they form a more and more comprehensive standard library. Do you need a 3rd party testing library like jest? Maybe, but there is a tester built […]

Set a variable in Pug, then create an inline script which sets that variable for using in JavaScript and use setProperty to pass it to CSS.