Javascript

JavaScript recipes for CSS developers and designers to solve common UI problems that aren't easily solvable in pure CSS alone.

Deciding on the approaches and tools to use to build on web these days can be a challenging prospect....

Mit Lottie könnt ihr unkompliziert skalierbare und interaktive Animationen in Websites integrieren. Das sog. Lottie-File basiert auf JSON und wird mittels JavaScript in die Website integriert.

Here's how you can debug what JavaScript code is adding global variables to the window object

A free tool to visualize the output of array operations

Learn how to use promises to handle waiting for certain conditions to happen

Converts embedded GitHub gists into PrismJS code blocks. - lonekorean/gist-to-prismjs: Converts embedded GitHub gists into PrismJS code blocks.

In this article, Nathan Smith explains how to create modal dialog windows with rich interaction that will only require authoring HTML in order to be used. They are based on Web Components that are currently supported by every major browser.

Updated: Add clean task that uses rimraf to delete the bundle.min.js file if it already exist. Without this it would just append to the existing bundle.min.js file. When you release your web site to production, you should minify and concatenate your javascript files. You will have much better performance by doing this but unfortunately debugging becomes difficult with the minified code as it shortens all of the variable and method names.

Great performance is key for great UX. We’ve told you how to tackle the low-hanging fruit: optimizing images for faster page loads. Now it’s time to fight the boss: JavaScript. Check out our handy guide!

Excess first-party and third-party JavaScript in your code takes over your main thread and makes your websites slow. We’ve got two open-source solutions that can solve this major problem.

Why hydration is a workaround, not the solution.

Martin Splitt's blog - CORS - a guided tour

Martin Splitt's blog - Reading local files with JavaScript

A couple of weeks ago, we looked at how to build reactive, state-based components with vanilla JS. How to create a state-based UI component How to add reactivity to a state-based UI component with Proxies How to batch UI rendering for better performance Today, we’re going to learn how to add DOM diffing to our component. If you haven’t yet, go back and read the first three articles, or today’s won’t make a whole lot of sense.

This post is a recap of a personal journey, that lasted about 3 years, in search of the best DOM diffing options I could find.

TremulaJS: a Javascript UI component designed to navigate large result sets of visual content with a high degree of UX fluidity.

When I’d go to a conference (when we were able to do such things) and see someone do a presentation on web components, I always thought it was pretty nifty

Learning the DOM-API in a playful way

Yesterday, I got an email from a newsletter subscriber asking: What’s the best way to practice JavaScript? There’s no one right way to learn JavaScript. But after teaching it for a handful of years now, I have found some trends and common approaches that make things easier for a lot of students. Let’s dig in! Lean into your learning style Some folks learn best by reading, others from watching videos, and others from just diving in and trying a bunch of stuff until things click.

Today, we’re going to look at four different techniques you can use to get and set text and HTML in DOM elements. Let’s dig in! The Element.innerHTML property You can use the Element.innerHTML property to get and set the HTML content inside an element as a string. div class="greeting" pHello world!/p /divlet greeting = document.querySelector('.greeting'); // Get HTML content // returns "pHello world!/p" let html = greeting.innerHTML; // Set HTML content // This replaces what was in there already greeting.

Yesterday, we looked at four ways to inject text and HTML into the DOM with vanilla JS. Today, we’re going to look at five more. Let’s dig in! The document.createElement() method You can use the document.createElement() method to create an element. Pass in the element to create, without angled brackets (), as an argument let div = document.createElement('div'); let link = document.createElement('a'); let article = document.createElement('article'); You can use any valid HTML tag, and even create custom ones, too.

Yesterday, I had the pleasure of chatting with Chris Bongers about how I became the vanilla JS guy. We talked about how I got into web development after years as an HR professional, how I made the career switch, the viability of CSS as a career path, and why I got into JavaScript. We also talked a fair bit about the value of sharing everything you learn, and the power of daily writing.

One of the biggest missing features from most static site generators (like Hugo, 11ty, and Jekyll, ) is that they lack built-in search. Database-driven platforms like WordPress make a server call and search the database to find matching content. Static websites have no database to query. Today, I’m going to share how I built the search functionality for my site with vanilla JS. Let’s dig in! Quick aside: done-for-you alternative If you don’t want to roll-your-own search functionality, Algolia and ElasticSearch are two done-for-you search vendors.

For years, a trend in our industry has been to build single-page apps, or SPAs. With an SPA, the entire site or app lives in a single HTML file. After the initial load, everything about the app is handled with JavaScript. This is, in theory, supposed to result in web apps that feel as fast and snappy as native apps. Today, I want to explore why that’s nonsense. Let’s dig in!

Yesterday, I wrote about how SPAs were a mistake. Today, I want to talk about how you can build multi-page apps (or, you know, regular websites) that are as fast as SPAs. Let’s dig in! A quick summary The sites and apps I build are absurdly fast. They load nearly instantly. Even on spotty 3G connections on the other side of the world, where many of my students live, things still load really quickly (like, 3 seconds or less fast).

A new crop of tools is helping developers build web UI components on the backend—no JavaScript required!