I’m not part of the Rails team, I’m just a daily Rails developer. So this list comes only from my imagination. Let’s dream. Hot reloading just works™ Hot reloading means “auto-refreshing the browser when the developer modifies a file”. It’s 2021, now all web frameworks (at least in the JavaScript space) have hot-reloading that just …
In Ruby, the classic ‘switch statement’ is possible with the *case/when* keywords. Whenever if statements become too long and start looking messy you might want to consider using the case statement to write cleaner code. So how do you switch to case/when ? Case statements in Ruby are very powerful. To quote the popular ProgrammingRuby book, “The …
A tiny hack about how to declare and use private method in Ruby. How to declare a private method All methods above the keyword “private” is considered as public, all methods below are considered as private. Note that “private” here is not a keyword, but a method of the Kernel module. What is a private …
Tailwind and Bootstrap are the most used CSS framework by now. Let’s see how they compare – with the bias of a Ruby-on-Rails developer point of view. Is it related to Rails anyway ? Tailwind and Bootstrap are both CSS frameworks, so one could argue that they have nothing to do with Rails itself. Which …
Tailwind vs Bootstrap, from a Rails developer point of view Read More »
A step-by-step tutorial about how to create a custom Bootstrap v5 theme for Rails 0. Prerequisite You will need both Rails and Bootstrap for this tutorial. I already wrote a tutorial about this, so just follow the steps, or checkout the corresponding GitHub repository in order to start this new tutorial. 1. SCSS is standard for Rails and Bootstrap …
How to create a custom Bootstrap theme for Rails Read More »
Webpacker and Sprockets both try to manage the frontend assets of Ruby-on-Rails applications. They are both integrated inside default Rails applications. But they’re doing the same job actually, so after 4 years of using both, it’s time to choose. 0. The ancient times : before Sprockets I wasn’t in the Ruby-on-Rails industry at that time, …
Posted March 30, 2021 – tagged ruby More often than not, you have to check if an object is empty or not, to avoid the famous *NullPointerException* – which is a *NoMethodError* in Ruby. “if” alone may not be enough if false or if nil won’t execute the corresponding condition, because false and nil are considered as falsy values. In other words, if …
Check emptiness in Ruby : nil? vs blank? vs empty? vs presence? Read More »
Rails bullet gem is here to solve the N+1 query problem. Let’s create this problem first, and then solve it thanks to the Rails bullet gem. Prequisites Tool I will use in this tutorial : Fresh Rails app – no bullet gem yet Then let’s go at the root of your usual workspace, and start …
‘rails new’ is a well-known command to create fresh new Rails application. There is now a –minimal flag that allow the developer to build the most simple possible Rails app. Let’s see how to take profit from this simplification. How to create a new Rails app Let’s see the default way to create a new …
Rails new app, options, and minimalistic approach Read More »
I have always used ActiveSupport, but I wasn’t aware of it. Until I meet a tweet from Sebastien, who will launch a course about ActiveSupport soon. So I decided to interview him about this Rails ‘magic feature’. About Sebastien, has written a course about ActiveSupport, which is available here. Below is an interview of Sebastien. What …
Active Support : Rails delightful additions to Ruby Read More »