The pages […] allow you to see different types of mixed content and test how they behave in your browser. The...
...valid with a name and birthday' do actor = Actor.new(name: 'Christian Bale', birthday: '31-12-2000') expect(actor).to be_valid end end But the error came from rspec_rails...
A rough guide how to implement a REST API. The discussion here includes some interesting points as well: Timestamps: ISO8601...
If your project depends on an old version of ImageMagick that you can no longer install in your system, you...
You can use git worktree to manage multiple working trees attached to the same repository. But why should I use...
The linked article provides a good overview of the various concurrency primitives in Ruby, and what's changing in Ruby...
bundle outdated [--filter-major|--filter-minor|--filter-patch] Example output for bundle outdated --filter-major Other examples
Insomnia is a GUI tool to help you communicating with an API. There are also other tools to do this...
Consider the following models and form models: class Parent < ApplicationRecord has_many :children, class_name: 'Child', foreign_key: 'parent_id...
By default, your terminal emulator (Gnome Terminal, Terminator, etc.) sets some kind of window title to reflect the shell type...
PostgreSQL has partial indexes. With a partial index you tell Postgres to only index rows matching a given query.
Systemd's networkd will drop IP-Addresses configured by other processes like Keepalived's VRRP, when it is restarted. This...
Rails supports alert and notice as default flash types. This allows you to use these keys as options in e.g...
I just finished migrating a project from the Asset Pipeline to Webpacker, this is what my diff to master looks...
In case Ruby does not detected the expected encoding of a file automatically you can specify the known encoding manually...
In my experience, the most common sources of memory leaks are APIs like these: addEventListener. This is the most common...
In Ruby you can communicate between processes with sockets. This might be helpful in tests that validate parallel executions or...
The ExceptionNotification has plugins that talk to external APIs rather then just sends emails, like microsoft teams or slack. You...
Ruby offers monkey patching methods in order to change the behavior of a library if there's no better way...
URLs can transport key/value pairs ("parameters") using this syntax: /path?foo=bar If the value is blank, mind these subtle...
In long diffs, it can become impossible to spot small changes in larger blocks of moved code. This may be...
TinyMCE is a WYSIWYG editor which is quite customizable. Add a custom button to the tinyMCE toolbar and tell tinyMCE...
Ruby's String#split returns an array of substrings from the given string. Usually, this is missing the split characters...
Whenever requires you to set the application attribute in your Capistrano configuration. Otherwise your cronjobs are created multiple times.