Note: Modern Rails has two build pipelines, the asset pipeline (or "Sprockets") and Webpacker. The principles below apply for both...
Interesting interview with DHH, where he talks about how they made the new Basecamp feel very fast without using a...
If you have an html_safe string, you won't be able to call gsub with a block and match...
If (for some reason that you don't want to ask yourself) you need to know all classes that define...
In a nutshell: return statements inside blocks cause a method's return value to change. This is by design (and...
If you get errors from your development WEBrick that contain unicode salad, you are probably requesting the page via SSL...
A print stylesheet is easy to create. Choose a font suited for paper, hide some elements, done. Unfortunately print stylesheets...
With the the Ruby Tempfile class you can create temporary files. Those files only stick around as long as you...
This article describes how to reset MySQL's or MariaDB's root password on your workstation. It's meant for...
There are many fun Unicode characters like ▲ or ☯. You might be tempted to use them for graphical elements in lieu...
Assuming the following sunspot setup of the post class: class Post < ActiveRecord::Base searchable do text :title string :state
Note: Instead of using the method in this card, you probably want to use ActiveType's nested attributes which is...
Every now and then, Java is subject to security issues where code can break out of Java's sandbox and...
When committing, you should always check the diff of your changes so you don't include any leftovers or irrelevant/bad...
Sometimes you need to look at the filter chain in specs. You can do it like that on Rails 2...
If you encounter a Firefox that does not care about your font settings but always uses specific fonts, you can...
Internet Explorer until version 9 has some limitations when parsing CSS files Summarized, these are: Up to 31 CSS files...
For string columns, MySQL indexes the left side of a string. That means an index can speed a like query...
By default, only application.js, application.css and all non-JS/CSS files are precompiled into public/assets. If you have asset manifests...
You can quickly access views that belong to a controller by using the tiny "page with arrow" icon in the...
In Selenium features the server and client are running in separate processes. Therefore, when mocking time with a tool like...
Be careful when stubbing out attributes on records that are defined by associations. Nothing is as it seems to be...
It might be one of the following: You are looking at a manifest file (like application.css) which is always empty...
No one wants to cry over regression issues in views; does testing HTML and CSS have to be such a...