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Wednesday, September 13th, 2023

Multi-page web apps

I received this email recently:

Subject: multi-page web apps

Hi Jeremy,

lately I’ve been following you through videos and texts and I’m curious as to why you advocate the use of multi-page web apps and not single-page ones.

Perhaps you can refer me to some sources where your position and reasoning is evident?

Here’s the response I sent…

Hi,

You can find a lot of my reasoning laid out in this (short and free) online book I wrote called Resilient Web Design:

https://resilientwebdesign.com/

The short answer to your question is this: user experience.

The slightly longer answer…

For most use cases, a website (or multi-page app if you prefer) is going to provide the most robust experience for the most number of users. That’s because a user’s web browser takes care of most of the heavy lifting.

Navigating from one page to another? That’s taken care of with links.

Gathering information from a user to process on a server? That’s taken care of with forms.

This frees me up to concentrate on the content and the design without having to reinvent the wheels of links and form fields.

These (let’s call them) multi-page apps are stateless, and for most use cases that’s absolutely fine.

There are some cases where you’d want a state to persist across pages. Let’s say you’re playing a song, or a podcast episode. Ideally you’d want that player to continue seamlessly playing even as the user navigates around the site. In that situation, a single-page app would be a suitable architecture.

But that architecture comes at a cost. Now you’ve got stop the browser doing what it would normally do with links and forms. It’s up to you to recreate that functionality. And you can’t do it with HTML, a robust fault-tolerant declarative language. You need to reimplement all that functionality in JavaScript, a less tolerant, more brittle language.

Then you’ve got to ship all that code to the user before they can use your site. It might be JavaScript code you’ve written yourself or it might be a third-party library designed for building single-page apps. Either way, the user pays a download tax (and a parsing tax, and an execution tax). Whereas with links and forms, all of that functionality is pre-bundled into the user’s web browser.

So that’s my reasoning. At least nine times out of ten, a multi-page approach is leaner, more robust, and simpler.

Like I said, there are times when a single-page approach makes sense—it all comes down to whether state needs to be constantly preserved. But these use cases are the exceptions, not the rule.

That’s why I find the framing of your question a little concerning. It should be inverted. The default approach should be to assume a multi-page approach (which is the way the web works by default). Deciding to take a JavaScript-driven single-page approach should be the exception.

It’s kind of like when people ask, “Why don’t you have children?” Surely the decision to have a child should require deliberation and commitment, rather than the other way around.

When it comes to front-end development, I’m worried that we’ve reached a state where the more complex over-engineered approach is viewed as the default.

I may be committing a fundamental attribution error here, but I think that we’ve reached this point not because of any consideration for users, but rather because of how it makes us developers feel. Perhaps building an old-fashioned website that uses HTML for navigations feels too easy, like it’s beneath us. But building an “app” that requires JavaScript just to render text on a screen feels like real programming.

I hope I’m wrong. I hope that other developers will start to consider user experience first and foremost when making architectural decisions.

Anyway. That’s my answer. User experience.

Cheers,

Jeremy

Sunday, June 18th, 2023

AI Hype-Driven Development - Parallels in History -

Simulmatics as a company was established in 1959 and declared bankruptcy in 1970. The founders picked this name as a mash of ‘simulation’ and ‘automatic’, hoping to coin a new term that would live for decades, which apparently didn’t happen! They worked on building what they called the People Machine to simulate and predict human behavior. It was marketed as a revolutionary technology that would completely change business, politics, warfare and more. Doesn’t this sound familiar?!

Wednesday, March 29th, 2023

GB Renewables Map

A lovely bit of real-time data visualisation from Robin:

It’s a personal project created at home in Wales with an aim to explore and visualise renewable energy systems. Specifically, it aims to visualise live generation from renewable energy systems around Great Britain and to show where that generation is physically coming from.

Tuesday, March 14th, 2023

The climate cost of the AI revolution • Wim Vanderbauwhede

As a society we need to treat AI resources as finite and precious, to be utilised only when necessary, and as effectively as possible. We need frugal AI.

Monday, November 14th, 2022

The IndieWeb for Everyone | Max Böck

Spot-on analysis by Max:

Generally speaking: The more independence a technology gives you, the higher its barrier for adoption.

I really hope that this when smart folks start putting their skills towards making the ideas of the indie web more widely available:

I think we’re at a special moment right now. People have been fed up with social media and its various problems (surveillance capitalism, erosion of mental health, active destruction of democracy, bla bla bla) for quite a while now. But it needs a special bang to get a critical mass of users to actually pack up their stuff and move.

Saturday, October 15th, 2022

Simon Collison | Building with a lightness of touch

If, like me, you despair at the tech stacking and JavaScriptification of everything, shut that out and pay attention to those who understand the material of the web, its inherent resilience and efficiency. We’re lucky that principled voices still advocate for simple and inclusive methods because building with efficiency and a lightness of touch makes the work feel meaningful and, sometimes, fun.

Tuesday, August 30th, 2022

html energy

Can you feel the energy?

Tuesday, April 26th, 2022

Progressively Enhanced Builds - Jim Nielsen’s Blog

Rather than thinking, “how do I combine a bunch of disparate content, templates, and tooling into a functioning website?”, you might think “how do I start at a functioning website with content and then use templates and build tooling to enhance it?”

I think Jim is onto something here. The more dependencies you have in your build process, the likelier it is that over time one of them will become a single point of failure. A progressive enhancement approach to build tools means you’d still be able to launch your site (even if it’s not in its ideal state).

I want to be able to view, edit, and if need be ship a website, even if the build process fails. In essence, if the build does fail I can still take all the source files, put them on a server, and the website remains functional (however crude).

Friday, March 4th, 2022

Write plain text files | Derek Sivers

If you rely on Word, Evernote or Notion, for example, then you can’t work unless you have Word, Evernote, or Notion. You are helpless without them. You are dependent.

But if you only use plain text, you can use any program on any device, forever. It gives great flexibility and peace of mind.

Wednesday, January 26th, 2022

Here’s what I didn’t know about :where() - Manuel Matuzović

I feel like I’m starting to understand how the CSS :where pseudo-class works and why it’s useful. The cogs are slowly turning in my brain.

Tuesday, October 19th, 2021

Software developers have stopped caring about reliability

My web browser has been perfectly competent at submitting HTML forms for the past 28 years, but for some stupid reason some asshole developer decided to reimplement all of the form semantics in JavaScript, and now I can’t pay my electricity bill without opening up the dev tools. Imagine what it’s like to not know how to do that. Imagine if you were blind.

Folks, this is not okay. Our industry is characterized by institutional recklessness and a callous lack of empathy for our users.

Monday, September 20th, 2021

The Future of CSS: Cascade Layers (CSS @layer) – Bram.us

This is a really in-depth explanation from Bramus of the upcoming @layer rules in CSS, from the brilliant minds of Miriam, fantasai and Tab.

Basically, you’ll be able to scope styles, and you get to define the context for that scoping. So all those CSS-in-JS folks who don’t appreciate the cascade will have a mechanism to get encapsulated styles.

I can see this being very handy for big complex codebases with lots of people on the team.

Tuesday, June 29th, 2021

Solutionism

Progressive enhancement in meatspace:

IRL progressive enhancement is quite common when you think of it. You can board planes with paper boarding cards, but also with technology like QR codes and digital wallets. You can pay for a coffee with cash, card or phone. The variety serves diverse sets of people. Just like in web development, not dismissing the baseline lets us cover use cases we didn’t know existed. It is fragile, though: some manager somewhere probably has a fantasy about replacing everything with fancy tech and fancy tech only.

Friday, June 25th, 2021

Robin Rendle ・ The web is too damn complex

The modern web wouldn’t be possible without big ol’ JavaScript frameworks, but—but—much of the web today is held back because of these frameworks. There’s a lot of folks out there that think that every website must use their framework of choice even when it’s not necessary. And although those frameworks solve a great number of problems, they introduce a substantial number of trade-offs; performance issues you have to deal with, complex build processes you have to learn, and endless dependency updates that can introduce bugs.

Saturday, May 22nd, 2021

Should DevTools teach the CSS cascade?

In a break with Betteridge’s law, I think the answer here is “yes.”

Saturday, April 3rd, 2021

Principles and the English language

I work with words. Sometimes they’re my words. Sometimes they’re words that my colleagues have written:

One of my roles at Clearleft is “content buddy.” If anyone is writing a talk, or a blog post, or a proposal and they want an extra pair of eyes on it, I’m there to help.

I also work with web technologies, usually front-of-the-front-end stuff. HTML, CSS, and JavaScript. The technologies that users experience directly in web browsers.

I think a lot about design principles for the web. The two principles I keep coming back to are the robustness principle and the principle of least power.

When it comes to words, the guide that I return to again and again is George Orwell, specifically his short essay, Politics and the English Language.

Towards the end, he offers some rules for writing.

  1. Never use a metaphor, simile, or other figure of speech which you are used to seeing in print.
  2. Never use a long word where a short one will do.
  3. If it is possible to cut a word out, always cut it out.
  4. Never use the passive where you can use the active.
  5. Never use a foreign phrase, a scientific word, or a jargon word if you can think of an everyday English equivalent.
  6. Break any of these rules sooner than say anything outright barbarous.

These look a lot like design principles. Not only that, but some of them look like specific design principles. Take the robustness principle:

Be conservative in what you send, be liberal in what you accept.

That first part applies to Orwell’s third rule:

If it is possible to cut a word out, always cut it out.

Be conservative in what words you send.

Then there’s the principle of least power:

Choose the least powerful language suitable for a given purpose.

Compare that to Orwell’s second rule:

Never use a long word where a short one will do.

That could be rephrased as:

Choose the shortest word suitable for a given purpose.

Or, going in the other direction, the principle of least power could be rephrased in Orwell’s terms as:

Never use a powerful language where a simple language will do.

Oh, I like that! I like that a lot.

Sunday, March 14th, 2021

Solar Protocol

This website is hosted across a network of solar powered servers and is sent to you from wherever there is the most sunshine.

Thursday, February 11th, 2021

The web didn’t change; you did

The problem with developing front end projects isn’t that it’s harder or more complicated, it’s that you made it harder and more complicated.

Yes! THIS!

Web development did not change. Web development grew. There are more options now, not different options.

You choose complexity. You can also choose simplicity.

Monday, February 1st, 2021

How to Build Good Software

The right coding language, system architecture, or interface design will vary wildly from project to project. But there are characteristics particular to software that consistently cause traditional management practices to fail, while allowing small startups to succeed with a shoestring budget:

  • Reusing good software is easy; it is what allows you to build good things quickly;
  • Software is limited not by the amount of resources put into building it, but by how complex it can get before it breaks down; and
  • The main value in software is not the code produced, but the knowledge accumulated by the people who produced it.

Understanding these characteristics may not guarantee good outcomes, but it does help clarify why so many projects produce bad outcomes. Furthermore, these lead to some core operating principles that can dramatically improve the chances of success:

  1. Start as simple as possible;
  2. Seek out problems and iterate; and
  3. Hire the best engineers you can.

Tuesday, December 15th, 2020

Cascading Style Sheets

There are three ways—that I know of—to associate styles with markup.

External CSS

This is probably the most common. Using a link element with a rel value of “stylesheet”, you point to a URL using the href attribute. That URL is a style sheet that is applied to the current document (“the relationship of the linked resource it is that is a ‘stylesheet’ for the current document”).

<link rel="stylesheet" href="/path/to/styles.css">

In theory you could associate a style sheet with a document using an HTTP header, but I don’t think many browsers support this in practice.

You can also pull in external style sheets using the @import declaration in CSS itself, as long as the @import rule is declared at the start, before any other styles.

@import url('/path/to/more-styles.css');

When you use link rel="stylesheet" to apply styles, it’s a blocking request: the browser will fetch the style sheet before rendering the HTML. It needs to know how the HTML elements will be painted to the screen so there’s no point rendering the HTML until the CSS is parsed.

Embedded CSS

You can also place CSS rules inside a style element directly in the document. This is usually in the head of the document.

<style>
element {
    property: value;
}
</style>

When you embed CSS in the head of a document like this, there is no network request like there would be with external style sheets so there’s no render-blocking behaviour.

You can put any CSS inside the style element, which means that you could use embedded CSS to load external CSS using an @import statement (as long as that @import statement appears right at the start).

<style>
@import url('/path/to/more-styles.css');
element {
    property: value;
}
</style>

But then you’re back to having a network request.

Inline CSS

Using the style attribute you can apply CSS rules directly to an element. This is a universal attribute. It can be used on any HTML element. That doesn’t necessarily mean that the styles will work, but your markup is never invalidated by the presence of the style attribute.

<element style="property: value">
</element>

Whereas external CSS and embedded CSS don’t have any effect on specificity, inline styles are positively radioactive with specificity. Any styles applied this way are almost certain to over-ride any external or embedded styles.

You can also apply styles using JavaScript and the Document Object Model.

element.style.property = 'value';

Using the DOM style object this way is equivalent to inline styles. The radioactive specificity applies here too.

Style declarations specified in external style sheets or embedded CSS follow the rules of the cascade. Values can be over-ridden depending on the order they appear in. Combined with the separate-but-related rules for specificity, this can be very powerful. But if you don’t understand how the cascade and specificity work then the results can be unexpected, leading to frustration. In that situation, inline styles look very appealing—there’s no cascade and everything has equal specificity. But using inline styles means foregoing a lot of power—you’d be ditching the C in CSS.

A common technique for web performance is to favour embedded CSS over external CSS in order to avoid the extra network request (at least for the first visit—there are clever techniques for caching an external style sheet once the HTML has already loaded). This is commonly referred to as inlining your CSS. But really it should be called embedding your CSS.

This language mix-up is not a hill I’m going to die on (that hill would be referring to blog posts as blogs) but I thought it was worth pointing out.