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Fly.io supports deploying Ruby on Rails using Docker containers to multiple regions. For the same benefits you get using a CDN, you can use Fly.io to deploy Rails and Postgres close to your users around the world.
MQTT is a message protocol for Internet of Things devices. It's very similar to pubsub where you can broadcast and subscribe to different topics. Learn how to send messages to an MQTT broker in this tutorial.
Learn the basics of SQL using the PostgreSQL database
Learn how to use a PMS5003 air quality sensor with Ruby on the Raspberry Pi. We'll use this to monitor air quality and gather data.
Learn about the ActionController Parameters with_defaults method to clean up your params in your Rails applications
Overriding the Confirm method in Turbolinks and Hotwire has been pretty tricky until now. Using promises, Turbo can now wait until the user has submitted the confirm modal.
A command palette is a common feature for power users. Learn how to add a command palette to your Ruby on Rails app using the Ninja Keys web component.
In this video, we will take a look at how to use a few association declaration options to build a couple of has_one associations off of a has_many association in Rails.
In this video, we will explore how the concepts we looked at in "Flattening Scopes in Ruby" are used in Rails by taking a look at the assert_difference method. We will walk through how the method works while taking note of where the concepts are applied.
In this video, we will look at how to use blocks and bindings in Ruby to pass local variables across different scopes.
CSS Variables or CSS custom properties allow you to define variables that can be used throughout your CSS to change properties and their values dynamically. It's a wonderful feature for allowing users to customize the look of your website.
Testing out new features or changes in production is something almost every application needs. Flipper is a fantastic tool with a GUI for rolling out these changes easily in your Ruby on Rails app.
Deploying to production often requires running tasks to backfill new columns and other data. The maintenance_tasks gem from Shopify does a great job of allowing you to define tasks with arguments and run them in production.
Meilisearch is an open source search engine written in Rust that integrates nicely with Rails to provide advanced search capabilities similar to ElasticSearch.
Hotwire allows us to add inline editing easily in Rails forms using Turbo Frames. Learn how to implement them in a reusable manner so you can inline edit any fields across any model.
Turbo now provides equivalents to Rails UJS data confirm, disable with, and method attributes that we can use.
Learn how to use Kredis and see it works by implementing a recent searches unique list
Refactoring a Javascript countdown timer into a reusable Stimulus controller gives a look at the flexibility we can achieve by taking advantage of the Stimulus Values API and customizing the default values.
A code review with Kasper from the Rails core team to show us the process of reviewing, designing, and refactoring Rails code.
Using jQuery and plugins like jQueryUI in modern Javascript can be a little tricky. We'll see how to use it, how to deal with javascript import hoisting and how to add plugins like jQueryUI
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Screencast tutorials to help you learn Ruby on Rails, Javascript, Hotwire, Turbo, Stimulus.js, PostgreSQL, MySQL, Ubuntu, and more.
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