What is a Cookie? Google it if you do not know. How are cookies transferred between your browser and...
Some browsers define window.event, which will return a copy of the "current" event. However, this is not defined by the...
The asset pipeline is one of Rails' two mechanisms how stylesheets, javascripts and images from your /assets folder are processed...
Some tasks in a web application are better not done live when a user request a page, but in the...
When a method has keyword arguments, Ruby offers implicit conversion of a Hash argument into keyword arguments. This conversion is...
Writing ruby methods that accept both optional and keyword arguments is dangerous and should be avoided. This confusing behavior will...
This is a guide on how to effectively use Git when working on a feature branch. It is designed to...
Starting with Rails 4.0, when you get an exception reported via the ExceptionNotification gem, you will only see a very...
I figure we needed a definitive reference for what work is triggered by changing various CSS properties. It's something...
A fantastic guide for a dilemma facing any web-based product. Here’s a simple set of Yes/No questions that...
Article shows how to make a script that fakes one kind of content when printed with cat, but uses different...
To safely transport an arbitrary string within a URL, you need to percent-encode characters that have a particular meaning...
As the web is being used for more and more tasks, expectations rise. Not only should web pages offer rich...
Method lookup Understand all the terms in How Ruby method lookup works, in particular: include extend singleton class
Understand how nested attributes appear in the params. See how the Rails form helpers encode the names of nested...
If you have problems installing a gem and get a error collect2: error: ld returned 1 exit status it's...
If the project team consists of at least 2 members, do a daily standup. It should not take much longer...
We organize our daily work with issues in our Linear workspace. Issue format A good issue needs to be precise...
When starting a project we always make a good estimate of all known requirements, and plan budgets and available developers...
PhantomJS has no binary builds for Linux, and building it yourself is painful. However, you can install it through npm...
I recommend install Node.js using nvm. This way you can have multiple Node versions in your ~/.nvm. You also won...
SitePrism gives you a simple, clean and semantic DSL for describing your site using the Page Object Model pattern, for...
You have the following HTML structure:
If you want to run Javascript code whenever someone clicks on a ...
..., you...
All browsers + IE9 know the CSS :empty selector. It lets you hide an element when it has no content, i.e...