api.rubyonrails.org

Rails offers a way to prepend (or append) view paths for the current request. This way, you can make the...

You need to update a lof gems. Make sure you don't have any version constraints in your...

Running rails server will start a local server that you can access via http://localhost:3000. When you are working...

makandracards.com

In Spreewald 1.10.4+, nested patiently blocks are now patient. Here is an example: patiently do outer_code patiently do

Bundler::GemRequireError: There was an error while trying to load the gem 'mysql2'. Gem Load Error is: Incorrect MySQL client...

stackoverflow.com

mysql> SELECT @@global.version; +------------------+ | @@global.version | +------------------+ | 5.6.30 | +------------------+ 1 row in set (0,00 sec) MySQL 5.6 Reference Manual says "BLOB and TEXT...

Use bundler > 1.15 to fix Gem::LOADED_SPECS_MUTEX (NameError). Given the following project: ruby -v ruby 1.8.7

w3c.github.io

Here is how to use Chromedriver without libraries like selenium-webdriver. This can be useful for debugging. The following example...

When installing gems, a lot of time is spent building locally installed documentation that you probably never use.

Say you want to move a git repository from one remote (perhaps Github) to another (perhaps Gitlab).

makandra dev

ActiveSupport::Dependencies takes care of auto-loading any classes in development. This is usually useful, but when you run into...

makandra dev
fontawesome.com

Font Awesome version 5 changed some icon names, and introduces new prefixes fab, far, and fas. There is a JavaScript...

rubylearning.com

This article will show you how to use throw and catch. It's a nice tool to break out of...

blog.bigbinary.com

This error is raised because your old database does not have a configured environment yet, which Rails 5 enforces.

web.archive.org

wrap the text with a span use line-height for the spacing between lines ("margin")

jsbin.com

If you try to listen to events on elements that are nested inside a , Firefox will stop event propagation once...

By default, browsers will not wrap text at syllable boundaries. Text is wrapped at word boundaries only. This card explains...

Summary: Don't add chromedriver-helper to the Gemfile the executables might break your tests in projects where chromedriver-helper...

makandra dev

Git has two kind of tags: annotated lightweight Annotated tags are stored as full objects in the Git database. They...

georgemauer.net

If your application exports CSV, be advised that Excel and other spreadsheet applications treat certain cells (those starting with =, +, - or...

We're usually running Ubuntu LTS versions. Sometimes newer hardware requires packages from more recent Ubuntu releases that only come...

RSpec allows you to mark a single Example/ExampleGroup so that only this will be run. This is very useful when...

makandra dev

An end-to-end test (E2E test) is a script that remote-controls a web browser with tools like Selenium...

Browsers support different types of redirects. Be very careful with these status codes: 301 Moved Permanently 308 Permanent Redirect