RSpec >= 3.3 added aggregate_failures, which allows multiple failures in an example and list them all, rather than aborting on...
Class-level process definitions are only applied to the original file Versions are generated based on the processed original file...
See the attached link for a useful overview of modern (and classic) DOM API methods, like matches, contains, append, cssText...
Bundler 2 requires at least Ruby 2.3.0 and RubyGems 2.5.0. You might get the following error when you try to...
Carrierwave includes some handy helper methods you can use to resize your images. Here is a quick summary of them...
For searching in large database tables we usually use PostgreSQL's fulltext search capabilities. While this works reasonably well for...
This is a presentation from 2019-01-21. Summary We want to move away from jQuery in future projects
Spammers have started abusing other application to send their spam. This works like this: The application has some form that...
When restoring a PostgreSQL dump using pg_restore, you usually add the --clean flag to remove any existing data from...
To remove all tables from a database (but keep the database itself), you have two options. Option 1: Drop the...
When building an application that sends e-mails to users, you want to avoid those e-mails from being classified...
If your app does not need to support IE11, you can use most ES6 features without a build step. Just...
The standard way to abort async code is that your function takes a AbortSignal { signal } property. The caller can use...
Suggested Workflow Set the ruby version in .ruby-version to 2.3.5, then perform these steps one by one, fixing errors...
Remember How to skip Sprockets asset compile during Capistrano deployment and Automatically skipping asset compilation when assets have not changed...
When doing Basic Authentication, your browser will send an "Authorization" header. Its value is simply a Base64-encoded representation of...
In ruby you can easily read and write CSVs with the standard CSV library class. On top of this, you...
The rendered font often depends on the local font your system provides, therefore you often find a rule like below...
To reload a single-item association in Rails 5+, call #reload_ : post.reload_author In older Railses you can say
Cucumber factory supports polymorphic associations out of the box. Just keep in mind that you need to use named associations...
When upgrading Rails versions -- especially major versions -- you will run into a lot of unique issues, depending on the exact...
The Ace editor is a great enhancement when you want users to supply some kind of code (HTML, JavaScript, Ruby...
There are many ways to optimize SVGs. Ideally, your build pipeline does that automatically for you (e.g. via postcss-svgo...
When projects run for many years, they require special regular maintenance to stay fresh. This kind of maintenance is usually...