Ruby On Rails

Tutorials

Validate Email Addresses - Andy Croll

Validate Email Addresses - Andy Croll There’s a surprising number of ways to do it.Making sure you can email your users is one of the most important things to get right in your application, so you probably already have validation checks around your User.

Linear Regression using dataframes in Ruby

Linear Regression using dataframes in Ruby So, we have two types of values, one of which will help predict the other. Standard terms used are dependent variables, the variables we’re trying to find, and independent variables for the variables that help us predict it. When thinking about ma...

How to debug issues with Turbo Morphing | Radan Skorić's personal site

How to debug issues with Turbo Morphing | Radan Skorić's personal site Turbo’s morphing feature can look magical. There’s a lot of pieces moving behind the scenes to make it come alive. That’s great when it works but when it doesn’t you might be left staring at the screen unsure where to start to debugging it. Maybe ...

Running Rails on AWS Elastic Beanstalk

Running Rails on AWS Elastic Beanstalk Recently, I got a Rails app running on AWS Elastic Beanstalk for the first time. I wanted to share the steps to do so here. Although there are other tutorials, AWS and Rails both change over time, so some of these steps here are updated compared t...

Finding Postgres rows too large for BTree indexes

Finding Postgres rows too large for BTree indexes A Ruby program to find rows in a Postgres database that are too large for BTree indexes.We are currently migrating our main application database from AWS Aurora Postgres to Google AlloyDB Postgres (it’s a cost decision) and I’m using Google’s data...

Playing Sounds in Rails with the Audio API

Playing Sounds in Rails with the Audio API In this post, we'll learn how Campfire allows users to play various funny sounds by typing `/play` followed by the name of the sound. I found the entire flow pretty interesting, involving various aspects of Rails and Hotwire. Let's see how it's done.

Ruby Koans in the Browser

Ruby Koans in the Browser Learn the Ruby programming language in your browser. This version of the Ruby Koans was made by Andi Idogawa using Ruby.wasm.

Configuring IRB autocomplete - DEV Community

Configuring IRB autocomplete - DEV Community Since the release of Rails 7, the Rails console comes with a super cool autocomplete feature that provides suggestions to you as you type. This is much like the intellisense and snippets you get while writing code in an editor. But let's take a lo...

A decent VS Code Ruby on Rails setup

A decent VS Code Ruby on Rails setup Setting up VS Code for Ruby on Rails development can be tricky, so I wrote this article to help. In it, I share different VS CUsing VS Code as a Ruby on Rails editor shouldn't be so hard! It's tricky deciding which extensions to use, and a bunch o...

Using Hotwire and Rails to build a live commenting system - DEV Community

Using Hotwire and Rails to build a live commenting system - DEV Community Today we're exploring Hotwire, a new-old way of building web applications by sending HTML instead of JSON over the wire.We'll learn how Hotwire works with Ruby on Rails by building a simple application that allows users to leave comments on a proj...

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