The more important point comes from a program design perspective. Here, "programming to an interface" means focusing your design on what the code is doing, not how it does it. This is a vital distinction that pushes your design towards correctness and flexibility.

It makes me happy to see people actually think about things and not just accept a shitty API.

I do think it's a common pattern that should be solved, and I am probably going to try and solve it as a Gem as opposed to simply writing code that we use in our code base

with ActiveForm-Rails, validations is the responsability of the form and not of the models. There is no need to synchronize errors from the form to the models and vice versa.

DSLs can be problematic for the user since the user has to manage state (e.g. am I supposed to call valid? first or update_attributes?). This is exactly why the #validate is the only method to change state in Reform.

Trust me, I thought a lot about #validate and its semantics, and I am gonna make it even more "SRP" by making Form#errors and #valid? semi-public. All that happens via #validate reducing the possible wrong usage for users.

I apologize for the slow development of Reform after the "explosion" when I released it initially. The reason for this is I changed jobs and didn't use Reform (yet).

if you name you instance variable form, then you can always just pass in params[:form]

Writing the uniqueness validations yourself is easy so I felt it was better to leave this up to the developer

Yes, you do face difficult choices (moral) but you don't care about it. All you care are the reputation bars. So... Let's kill this guy, who cares if he is innocent, but this faction needs it or I'm dead. Sounds great on paper but to be honest... you just sit there and do whatever for these reputation bars. If you won't, then you lose

We also find it hard to agree on what good names and bad names look like, which makes it hard to know when renaming improves a name.

Naming matters for both idealogical and practical reasons.

Anyone who has ever tried to name a child knows that naming is hard. Naming things in code is harder. It’s bad enough that you have to commit to a name that someone isn’t going to like. You also have to be able to live with it.

It's difficult because it's a case-by-case basis - there is no one right answer so it falls into subjective arguments.

Space: Suppose we had infinite memory, then cache all the data; but we don't so we have to decide what to cache that is meaningful to have the cache implemented (is a ??K cache size enough for your use case? Should you add more?) - It's the balance with the resources available.

Time: Suppose all your data was immutable, then cache all the data indefinitely. But this isn't always to case so you have to figure out what works for the given scenario (A person's mailing address doesn't change often, but their GPS position does).

So the hard and unsolvable problem becomes: how up-to-date do you really need to be?

After considering the value we place, and the tradeoffs we make, when it comes to knowing anything of significance, I think it becomes much easier to understand why cache invalidation is one of the hard problems in computer science

The non-determinism is why cache invalidation — and that other hard problem, naming things — are uniquely and intractably hard problems in computer science. Computers can perfectly solve deterministic problems. But they can’t predict when to invalidate a cache because, ultimately, we, the humans who design and build computational processes, can’t agree on when a cache needs to be invalidated.

Creating more legally binding licenses and contracts just perpetuates the problem of law – a.k.a. state force – intruding where it doesn’t belong.

Now if you think about it, PJAX sounds a lot like Turbolinks. They both use JS to fetch server-rendered HTML and put it into the DOM. They both do caching and manage the forward and back buttons. It's almost as if the Rails team took a technique developed elsewhere and just rebranded it.

when it comes to personal machines, I expect them to just work so I can work.

And honestly, most people prefer the no hassle, especially after wasting too much time dabbling with distros that are "for advanced users" troubleshooting all kinds of dumbass problems that just worked out of the box in many other distros.

This nav bar by Chris Coyier is a great example of something that makes more sense as a flexbox than grid.

Flexbox's strength is in its content-driven model. It doesn't need to know the content up-front. You can distribute items based on their content, allow boxes to wrap which is really handy for responsive design, you can even control the distribution of negative space separately to positive space.

that's a point, but I would say the opposite, when entering credit card data I would rathre prefer to be entirely in the Verified By Visa (Paypal) webpage (with the url easily visible in the address bar) rather that entring my credit card data in an iframe of someone's website.

If you teach your users to trust that URL bar is supposed to not change when they click links (e.g. your site uses a big iframe with all the actual content), then the users will not notice anything in the future either in case of actual security vulnerability.

Your browser window is basically just one big iframe.

The point is, just because you don’t see it, doesn’t mean it’s not happening. It’s been more than two years and as far as I know, no one has ever noticed one of my requests. Maybe it’s been in your site this whole time

Group Rules from the Admins1NO POSTING LINKS INSIDE OF POST - FOR ANY REASONWe've seen way too many groups become a glorified classified ad & members don't like that. We don't want the quality of our group negatively impacted because of endless links everywhere. NO LINKS2NO POST FROM FAN PAGES / ARTICLES / VIDEO LINKSOur mission is to cultivate the highest quality content inside the group. If we allowed videos, fan page shares, & outside websites, our group would turn into spam fest. Original written content only3NO SELF PROMOTION, RECRUITING, OR DM SPAMMINGMembers love our group because it's SAFE. We are very strict on banning members who blatantly self promote their product or services in the group OR secretly private message members to recruit them.4NO POSTING OR UPLOADING VIDEOS OF ANY KINDTo protect the quality of our group & prevent members from being solicited products & services - we don't allow any videos because we can't monitor what's being said word for word. Written post only.

Systemd flies in the face of the Unix philosophy: 'do one thing and do it well,' representing a complex collection of dozens of tightly coupled binaries

We informed and documented. We made it easy for you to understand the problem and also to take action if you disagreed. I hope you didn’t read https://linuxmint-user-guide.readthedocs.io/en/latest/snap.html#how-to-install-the-snap-store-in-linux-mint-20. I can’t understand how it could be simpler.

Is it harder to enable it in Mint than it is to disable it in Ubuntu? Not at all. Is how to enable it better documented in Mint than how to disable it in Ubuntu? Absolutely: https://linuxmint-user-guide.readthedocs.io/en/latest/snap.html.

We don’t do politics, and we certainly don’t do religion. You’re bringing these here by using terms such as “politicians” or “evil”.

The code is far simpler and easier to understand/verify

Ubuntu also supports ‘snap’ packages which are more suited for third-party applications and tools which evolve at their own speed, independently of Ubuntu. If you want to install a high-profile app like Skype or a toolchain like the latest version of Golang, you probably want the snap because it will give you fresher versions and more control of the specific major versions you want to track.

This is open-source. You can always fork and maintain that fork yourself if you feel that's warranted. That's how this project started in the first place, so I know the feeling.

Bordering an element with a single repeating image is something that seems like it should be easy with a property called border-image, but the process for actually doing that is somewhat counter-intuitive. Let’s say, for example, that you want to border an element with a repeating heart icon. You can’t do that with a image of a single heart. Instead, you have to make an image of a “frame” of hearts arranged as you’d like them to appear in the border, then slice that image. <img sizes="(min-width: 735px) 864px, 96vw" src='https://i2.wp.com/css-tricks.com/wp-content/uploads/2013/01/enlarged-border-image-slice.png' alt='' data-recalc-dims="1" />Eight hearts in a “frame” image, enlarged to show detail. The red lines indicate slices. If you think that sounds preposterous, you’re in good company. There was a lengthy discussion of the subject on Eric Myer’s blog a few years ago where many frontend development greats weighed in.

CSS Grid Layout excels at dividing a page into major regions or defining the relationship in terms of size, position, and layer, between parts of a control built from HTML primitives.

Making literal grids. Like X columns with Y gap between them homegrown framework stuff. grid-gap is wonderful, as gutters are the main pain point of grid systems.

I'm very (VERY!) tempted to use that ppa, but without offense to it's maintainers... it's just some random ppa. If it had more "traction" I'd use it. Right now it has only 3 maintainers.

Besides running contrary to the principles that lead a lot of people to Linux systems (a closed store that you can't alter...automatic updates you have no control over....run by just the one company)

If upstream code presumes things will work that dont in snap (e.g. accesses /tmp or /etc) the snap maintainer has to rewrite that code and maintain a fork. Pointless work. Packaging for .deb is a no-brainer.

Its not too complicated but it is an annoyance. I want /etc/hosts, /etc/resolv.conf, /etc/nsswitch.conf, /etc/rc.local and all the standard stuff to work. The heavy lifting is done in the kernel. All they need to do is leave it alone. Its getting harder to make Ubuntu behave like Linux.

if it's not broken, fix it until it is.

If components gain the slot attribute, then it would be possible to implement the proposed behavior of <svelte:fragment /> by creating a component that has a default slot with out any wrappers. However, I think it's still a good idea to add <svelte:fragment /> so everyone who encounters this common use case doesn't have to come up with their own slightly different solutions.

The CardLayout creates a store in context and the Card creates a standardized div container and registers it to the store so that the CardLayout has access to that DOM element. Then in afterUpdate you can move the DOM elements into columns and Svelte will not try to put them back where they go. It's a bit messy but it works.

I would love to see this features as well, since it makes component composition and reuse a lot easier.

You should default to the most permissive option imo and there really is no reason to check anything until you really need to If it were left to me I'd just use optional chaining, as it also eliminates the need for no-ops

new Cmp will render to the DOM synchronously, so you don't have to worry about the content flickering because the component is rendered too late.

"Headless Tippy" refers to Tippy without any of the default element rendering or CSS. This allows you to create your own element from scratch and use Tippy for its logic only.

It's a generic abstraction for the logic and styling of elements that pop out from the flow of the document and float next to a reference element, overlaid on top of the UI.

Popper has a sole goal: position elements. That's why we call it a "positioning engine" and not a "tooltip library".

Think first: why do you want to use it in the browser? Remember, servers must never trust browsers. You can't sanitize HTML for saving on the server anywhere else but on the server.

I don’t find the software slow, I find the startup time for snap packages when the start for the first time on a session slow, but that has been improved, and it’s public that the snapcraft team has been working hard to improve that.

What’s the use of ie. snap libreoffice if it can’t access documents on a samba server in my workplace ? Should I really re-organize years of storage and work in my office for being able to use snap ? A too high price to pay, for the moment.

I’m not a dev either, so no Ubuntu fork, but I will perhaps be forced to look at Debian testing, without some advantages of Ubuntu - but now that Unity is gone (and I deeply regret it), gap would not be so huge anymore…

If folks want to get together and create a snap-free remix, you are welcome to do so. Ubuntu thrives on such contribution and leadership by community members. Do be aware that you will be retreading territory that Ubuntu developers trod in 2010-14, and that you will encounter some of the same issues that led them to embrace snap-based solutions. Perhaps your solutions will be different. .debs are not perfect, snaps are not perfect. Each have advantages and disadvantages. Ubuntu tries to use the strengths of both.

If there’s a lot more to aligning icons to text than you expected, then you are not alone.

Dropped FFmpeg support (focus on primary functions instead)

Jbuilder gives you a simple DSL for declaring JSON structures that beats manipulating giant hash structures. This is particularly helpful when the generation process is fraught with conditionals and loops.

The only solution that I can see is to ensure that each user gets their own set of stores for each server-rendered page. We can achieve this with the context API, and expose the stores like so: <script> import { stores } from '@sapper/app'; const { page, preloading, session } = stores(); </script> Calling stores() outside component initialisation would be an error.

I tried leaking session and page data and indeed it's easy. Too easy. So I definitely agree that session data should not be readable from anywhere but the request itself.

This would be cumbersome, and would encourage developers to populate stores from inside components, which makes accidental data leakage significantly more likely.

which makes it much harder to accidentally keep logged-in state visible after a client-side logout

it focuses on compiling non-standard language extensions: JSX, TypeScript, and Flow. Because of this smaller scope, Sucrase can get away with an architecture that is much more performant but less extensible

You’re in good companyTrusted by leaders at some of the world’s most inspired organizations

You can afford to make a proper PR to upstream.

No more waiting around for pull requests to be merged and published. No more forking repos just to fix that one tiny thing preventing your app from working.

Can this be merged please, this fixes a problem I have

Unless we choose to use the semver ju-jitsu of calling the changes a bugfix

May I ask what is holding this back?

locked and limited conversation to collaborators

coding style

There's a huge area of seemingly obvious user-centric products that don't exist simply because there isn't a working business model to support it.

If you want a reference to the global object that works in any context, you can read this from a directly-called function. const global = (function() {return this})();. This evaluates to window in the browser, self in a service worker and global in nodejs.

If the client JS is disabled, then handleSubmit will never be executed and you have to care that your /api/fakeBackendRoute will handle the data exactly how the client would.

Svelte by itself is great, but doing a complete PWA (with service workers, etc) that runs and scales on multiple devices with high quality app-like UI controls quickly gets complex. Flutter just provides much better tooling for that out of the box IMO. You are not molding a website into an app, you are just building an app. If I was building a relatively simple web app that is only meant to run on the web, then I might still prefer Svelte in some cases.

Unfortunately it is not just the semantic that is broken. There are lot of things.For example if you look at some of the examples (https://flutter.github.io/samples/#/) - you can see that indeed there are some div and p tags but it is not entirely normal DOM elements. For example you can't even select text anywhere on the screen. And there are more and more little things like that.Just to be clear - Flutter for web is great, I'm happy it exists, but it is not comparable to React/Vue or Svelte.IMO Flutter for web is good to post live examples of Flutter code or maybe some last-minute-boss-request to make a web version of existing app, but for not for full-blown web app. :)

All projects here are completely frozen, though feel free to fork and continue using them on your own.

One last bonus: CSS variables can be written in a way that makes it easier for human programmers to understand. If you just see hex code #93e9be, you won’t know what color it produces, while --brand-green makes clear the purpose of the variable.

Fallback values aren't used to fix the browser compatibility. If the browser doesn't support CSS custom Properties, the fallback value won't help.

An additional benefit is semantic identifiers. For example, --main-text-color is easier to understand than #00ff00, especially if this same color is also used in other contexts.

That’s how developers create buttons — they add padding to their div containers, not heights.

passive: true instructs chrome that no body will call e.preventDefault() so chrome can optimized scrolling just because no body will call e.preventDefault and so there is no need to wait listeners...

@monkeythedev can your work be used already? I would suggest not yet, i'm still doing core changes every day

What was it like to be a software engineer at NeXT?

After some attempts mapping with Svelte, I missed using canvas instead of SVG

In the past, I tried to create some proof of concepts with svelte, but I usually ended up missing some of the features that RxJS provides. Now that I know that they complement each other well, I will grab this combination more often

Svelte makes the pit of success larger because it hides all of this from us at compile time.

At the start this is hard to get right, and bad practices will sneak into the codebase.

I find the binding of Mini Express pleasant.

What vaults this well past SNCF for me (setup time aside), is the limited company choice; it prevents a feedback loop of sorts where a game devolves into running each company in the ground.

Who’s Using Snowpack?

So handling the interop upfront will avoid users writing invalid ES6 and make sure that they write ES6 that loads CommonJS in the right way.

If everyone did this, the repair shops would be out of business.

While there have always been server listings on joinmastodon.org, this is a break from our previous practice of listing servers. Before the Server Covenant we pulled a list of servers from a 3rd party provider called instances.social. However, instances.social was a 3rd party and automated service. The one thing that it could not do was any kind of quality control as it simply listed every instance submitted–regardless of stability or their code of conduct. As Mastodon has grown it has become increasingly clear that simply listing every possible server was not in our interest as a project, nor was it in the interest in the majority of the communities running Mastodon.

Used by folks at

There was a major refactoring in the resolver (https://github.com/webpack/enhanced-resolve). This means the resolving option were changed too. Mostly simplification and changes that make it more unlikely to configure it incorrectly.