morphdom VS hotwire-rails

morphdom

And sure enough, it works! So what's going on here? Well, clicking the link invokes our reflex, which gets executed right before our current controller action runs again. It allows us to execute any kind of server-side logic, as well as play with the DOM in various ways, but with ruby code. Then, the DOM gets morphed over the wire.

It's super simple actually. And that is in large part to (Morphdom)[https://github.com/patrick-steele-idem/morphdom] which I'm using to compare the output of render() to what is already on the DOM. Morphdom will patch the differences.

I'm using morphdom to patch our DOM. Its a very simple library that compares two DOM elements and updates only the differences. It is extremely performant and does not even use a Virtual DOM, just the DOM you already have!

using HTML-diffing libraries like morphdom to efficiently update elements on the page

no it actually looks like morphdom is what i'm looking for.

It tries to morph into existing DOM (with https://github.com/patrick-steele-idem/morphdom). In case of fail, there is fallback to HTML replacement with outerHTML. All DOM operations after action occurs on component level, not the whole page.

Today, we’re going to build a live search experience once more. This time with StimulusReflex, a “new way to craft modern, reactive web interface with Ruby on Rails”. StimulusReflex relies on WebSockets to pass events from the browser to Rails, and back again, and uses morphdom to make efficient updates on the client-side.

Whenever the JavaScript on the browser-side receives new HTML, it will update the current page using a DOM-diff approach (using morphdom). So only DOM nodes that have actually changed between the initial page load and the updated HTML will be updated.

Updating the DOM is not slow. In fact, there are libraries and frameworks that emphatically reject the virtual dom approach. morphdom is one such example of a DOM modification library. Svelte's author Rich Harris has been proclaiming for a while that virtual dom is an overhead (see e.g. this article). Google's lit-html and lit-element do much of what react does without the virtual dom.

Applications generated with Rails 7 will get Turbo and Stimulus (from Hotwire) by default, instead of Turbolinks and UJS. Hotwire is a new approach that delivers fast updates to the DOM by sending HTML over the wire.

For Ajax-y stuff, I am really excited by the new crop of "HTML-as-a-Service" or "HTML-over-the-wire."

https://htmx.org/

https://hotwired.dev/

For all the turbo/stimulus/hotwire mix, you want to add a new feature just for the sake of adding it? or do you have a use case that fits the feature? if you have then you probably already have an implementation with a different technology (stimulus reflex? some custom websockets or ajax implementation? something with anycable?) and you have to check how to migrate from that technology to hotwire. If you just want to use the feature with no real need for it to practice then just pick any tutorial from the internet (like the intro in the official website https://hotwired.dev).

I was recently interested in similar topic. Here are 3 similar solutions I found:

* https://htmx.org/

* https://unpoly.com/

* https://hotwired.dev/

My personal preference is Unpoly (the idea of "layers" is awesome). But the best explanation of concept as a whole (HATEOAS, keeping app state on server using partial page updates, etc) is at HTMX homepage, and in these essays:

* https://htmx.org/essays/hateoas/

* https://htmx.org/essays/locality-of-behaviour/

At the end of 2020 the Basecamp team released a collection of Javascript libraries called Hotwire. Modern web stacks have popularized javascript-rendered front ends and JSON transmissions. Hotwire's primary motivation is to reduce the Javascript footprint and allow application front ends to be created in primarily HTML. It pairs very nicely with the Ruby on Rails ideology and is often demonstrated in that context. I aim to write a series on how Hotwire can be used in any application to simplify development and reduce the need for heavy Javascript downloads. Hotwire currently consists of two javascript libraries: Turbo and Stimulus. The first part of this series introduces Turbo.

I've been doing that a while until I just got sock of the JS spagetti and often duplicated code and went full on Angular CSR and never looked back. That being said, I've been seeing a lot recently about Laravel's Livewire and Symfony and Ruby on Rail's integration with Hotwire (stimulus+turbo).