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Programmer's Corner

A blog by Blogger in CodeName Blogs

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Entries in this blog

An Introduction to JavaScript Expressions

by: Mat Marquis Wed, 22 Oct 2025 19:08:23 +0000 Editor’s note: Mat Marquis and Andy Bell have released JavaScript for Everyone, an online course offered exclusively at Piccalilli. This post is an excerpt from the course taken specifically from a chapter all about JavaScript expressions. We’re publishing it here because we believe in this material and want to encourage folks like yourself to sign up for the course. So, please enjoy this break from our regular broadcasting to get a small taste of

Google Chrome & Iframe `allow` Permissions Problems

by: Chris Coyier Mon, 20 Oct 2025 18:06:24 +0000 If you’re a CodePen user, this shouldn’t affect you aside from potentially seeing some console noise while we work this out. Carry on! At CodePen we have Embedded Pens which are shown in an <iframe>. These contain user-authored code at a non-same-origin URL as where they are placed. We like to be both safe and as permissive as possible with what we allow users to build and test. The sandbox attribute helps us with safety and while

Building a Honeypot Field That Works

by: Zell Liew Mon, 20 Oct 2025 16:11:40 +0000 Honeypots are fields that developers use to prevent spam submissions. They still work in 2025. So you don’t need reCAPTCHA or other annoying mechanisms. But you got to set a couple of tricks in place so spambots can’t detect your honeypot field. Use This I’ve created a Honeypot component that does everything I mention below. So you can simply import and use them like this: <script> import { Honeypot } from '@splendi

Chris’ Corner: Stage 2

by: Chris Coyier Mon, 20 Oct 2025 15:47:26 +0000 We get all excited when we get new CSS features. Well, I do anyway. It’s amazing, because sometimes it unlocks something we’ve literally never been able to do before. It’s wonderful when an artist finishes a new painting, and something to be celebrated. But this is more akin to a new color dropping, making possible a sight never before seen. Just as exciting, to me, is the evolution of new features. Both from the perspective of the feature l

Sequential linear() Animation With N Elements

by: Temani Afif Wed, 15 Oct 2025 13:39:39 +0000 Let’s suppose you have N elements with the same animation that should animate sequentially. The first one, then the second one, and so on until we reach the last one, then we loop back to the beginning. I am sure you know what I am talking about, and you also know that it’s tricky to get such an effect. You need to define complex keyframes, calculate delays, make it work for a specific number of items, etc. Tell you what: with modern CSS, we c

413: Still indie after all these years

by: Chris Coyier Tue, 14 Oct 2025 13:52:25 +0000 We’re over 13 years old as a company now. We decide that we’re not a startup anymore (we’re a “small business” with big dreams) but we are still indie. We’ve seen trends come and go. We just do what we do, knowing the tradeoffs, and plan to keep getting better as long as we can. Links Timeline – Chris Coyier 115: Adam Argyle on Cracking the 2025 Web Dev Interview | Front-End Fire Time Jumps 00:05 Are we still an indie sta

Chris’ Corner: Design (and you’re going to like it)

by: Chris Coyier Mon, 13 Oct 2025 17:01:15 +0000 Damning opening words from Edwin Heathcote in Why designers abandoned their dreams of changing the world. The situation is, if you wanna make money doing design work, you’re probably going to be making it from some company hurting the world, making both you and them complicit. Kinda dark. But maybe it is course correction for designers thinking they are the world’s salvation, a swing too far in the other direction. This pairs very ni

Masonry: Watching a CSS Feature Evolve

by: Saleh Mubashar Mon, 13 Oct 2025 14:31:35 +0000 You’ve probably heard the buzz about CSS Masonry. You might even be current on the ongoing debate about how it should be built, with two big proposals on the table, one from the Chrome team and one from the WebKit team. The two competing proposals are interesting in their own right. Chrome posted about its implementation a while back, and WebKit followed it up with a detailed post stating their position (which evolved out of a third proposa

Masonry: Watching a CSS Feature Evolve

by: Saleh Mubashar Mon, 13 Oct 2025 14:31:35 +0000 You’ve probably heard the buzz about CSS Masonry. You might even be current on the ongoing debate about how it should be built, with two big proposals on the table, one from the Chrome team and one from the WebKit team. The two competing proposals are interesting in their own right. Chrome posted about its implementation a while back, and WebKit followed it up with a detailed post stating their position (which evolved out of a third proposa

We Completely Missed width/height: stretch

by: Daniel Schwarz Fri, 10 Oct 2025 14:03:52 +0000 The stretch keyword, which you can use with width and height (as well as min-width, max-width, min-height, and max-height, of course), was shipped in Chromium web browsers back in June 2025. But the value is actually a unification of the non-standard -webkit-fill-available and -moz-available values, the latter of which has been available to use in Firefox since 2008. The issue was that, before the @supports at-rule, there was no nice wa

412: 2.0 Embedded Pens

by: Chris Coyier Thu, 09 Oct 2025 15:45:43 +0000 Or just “Embeds” as we more frequently refer to them as. Stephen and Chris talk about the fairly meaty project which was re-writing our Embeds for a CodePen 2.0 world. No longer can we assume Pens are just one HTML, CSS, and JavaScript “file”, so they needed a bit of a redesign, but doing as little as possible so that existing Embed Themes still work. This was plenty tricky as it was a re-write from Rails to Next.js, with everything needing to be

The thing about contrast-color

by: Geoff Graham Wed, 08 Oct 2025 14:52:58 +0000 One of our favorites, Andy Clarke, on the one thing keeping the CSS contrast-color() function from true glory: Word. White and black are two very safe colors to create contrast with another color value. But the amount of contrast between a solid white/black and any other color, while offering the most contrast, may not be the best contrast ratio overall. This was true when added a dark color scheme to my personal website. The cont

Getting Creative With shape-outside

by: Andy Clarke Mon, 06 Oct 2025 15:45:40 +0000 Last time, I asked, “Why do so many long-form articles feel visually flat?” I explained that: Then, I touched on the expressive possibilities of CSS Shapes and how, by using shape-outside, you can wrap text around an image’s alpha channel to add energy to a design and keep it feeling lively. There are so many creative opportunities for using shape-outside that I’m surprised I see it used so rarely. So, how can you use it to add persona

Chris’ Corner: Discontent

by: Chris Coyier Mon, 06 Oct 2025 15:16:00 +0000 Nothing is above a little healthy criticism. Here’s Den Odell’s article We Keep Reinventing CSS, but Styling Was Never the Problem. If I can critique the critique, it makes some good and astute points, but pitting CSS evolution as the enemy up front doesn’t sit right. CSS itself, in my opinion, is doing great. It’s not the job of CSS to chase trends or bend toward fickle developer tooling trends. To be fair, Den also says it’s not re

411: The Power of Tree-Sitter

by: Chris Coyier Wed, 01 Oct 2025 13:24:46 +0000 Alex and Chris hop on the show to talk about a bit of technology that Alex calls “The 2nd best technological choice he’s ever made.” That technology is called Tree-sitter. It’s a code parsing tool for building ASTs (Abstract Syntax Trees) out of code. GitHub uses it to power search and “go to” functionality. The creators now work on Zen, where a code parser is paramount. We use it to understand an entire Pen very quickly so we can understand how

Same Idea, Different Paint Brush

by: Geoff Graham Wed, 01 Oct 2025 13:02:47 +0000 There’s the idiom that says everything looks like a nail when all you have is a hammer. I also like the one about worms in horseradish seeing the world as horseradish. That’s what it felt like for me as I worked on music for an album of covers I released yesterday. I was raised by my mother, a former high school art teacher (and a gifted artist in her own right), who exposed me to a lot of different tools and materials for painting an

When Should Testing Start in the Development Process? – Complete Guide

by: Neeraj Mishra Wed, 01 Oct 2025 07:33:55 +0000 Typically speaking, developing software is a long series of stages that starts with requirements gathering to development to testing, to final release. Each stage requires the respective members to contribute to the final development of the product in their own capacity. The business analyst’s job is to collect requirements from the client and validate their feasibility with a technical architect. The technical architect studies the whole enviro

Chris’ Corner: Word Search

by: Chris Coyier Mon, 29 Sep 2025 17:01:13 +0000 My daughter had a little phase of being into Word Searches. I found it to be a cool dad moment when I was like “I’ll make you a tool to make them!”. That’s what she was into. She liked doing them OK, but she really liked the idea of making them. So my tool starts with a blank grid where you can type in your words, then fill in the blanks with random letters, then print it. Perhaps unsurprisingly, this type of simple game with simple well

Touring New CSS Features in Safari 26

by: Juan Diego Rodríguez Mon, 29 Sep 2025 14:31:16 +0000 A couple of days ago, the Apple team released Safari 26.0! Is it a big deal? I mean, browsers release new versions all the time, where they sprinkle in a couple or few new features. They are, of course, all useful, but there aren’t usually a lot of “big leaps” between versions. Safari 26 is different, though. It introduces a lot of new stuff. To be precise, it adds: 75 new features, 3 deprecations, and 171 other improvements. I’d offi

Recreating Gmail’s Google Gemini Animation

by: John Rhea Fri, 26 Sep 2025 14:45:13 +0000 I always see this Google Gemini button up in the corner in Gmail. When you hover over it, it does this cool animation where the little four-pointed star spins and the outer shape morphs between a couple different shapes that are also spinning. I challenged myself to recreate the button using the new CSS shape() function sprinkled with animation to get things pretty close. Let me walk you through it. Drawing the Shapes Breaking it d

CSS Typed Arithmetic

by: Amit Sheen Wed, 24 Sep 2025 12:49:22 +0000 CSS typed arithmetic is genuinely exciting! It opens the door to new kinds of layout composition and animation logic we could only hack before. The first time I published something that leaned on typed arithmetic was in this animation: CodePen Embed Fallback But before we dive into what is happening in there, let’s pause and get clear on what typed arithmetic actually is and why it matters for CSS. Browser Support: The CSS featur

410: Trying to help humans in an industry that is becoming increasingly non-human

by: Chris Coyier Tue, 23 Sep 2025 17:33:00 +0000 Chris & Marie jump on the podcast to talk about just how drastically customer support has changed over the last few years. We still exclusively do customer support over email. Incoming email from real customers who need a hand with something where they type out that email in plain languages themselves are few and far between. Instead we get an onslaught of noise from users that don’t exist about Pens and situations that don’t exist. The influ

Chris’ Corner: Little Bits of CSS

by: Chris Coyier Mon, 22 Sep 2025 15:33:16 +0000 Adam Argyle is clear with some 2025 CSS advice: Nobody asked me, but if I had to pick a favorite of Adam’s six, it’s all the stuff about animating <dialog>, popover, and <details>. There is a lot of interesting new-ish CSS stuff in there that will help you all around, between allow-discrete, overlay, ::backdrop, :popover-open, @starting-style, and more. /* enable transitions, allow-discrete, define timing */ [popover], dia

On inclusive personas and inclusive user research

by: Geoff Graham Fri, 19 Sep 2025 13:58:37 +0000 I’m inclined to take a few notes on Eric Bailey’s grand post about the use of inclusive personas in user research. As someone who has been in roles that have both used and created user personas, there’s so much in here What’s the big deal, right? We’re often taught and encouraged to think about users early in the design process. It’s user’ centric design, so let’s personify 3-4 of the people we think represent our target audiences so our wor

Is it Time to Un-Sass?

by: Jeff Bridgforth Wed, 17 Sep 2025 14:02:25 +0000 Several weeks ago, I participated in Front End Study Hall. Front End Study Hall is an HTML and CSS focused meeting held on Zoom every two weeks. It is an opportunity to learn from one another as we share our common interest in these two building blocks of the Web. Some weeks, there is more focused discussion while other weeks are more open ended and members will ask questions or bring up topics of interest. Joe, the moderator of the group,

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