A HTTP 302 Found redirect to PATCH and DELETE requests will be followed with PATCH or DELETE. Redirect responses to...
In JavaScript we often use Immediately Invoked Function Expessions (or IIFEs) to prevent local variables from bleeding into an outside...
During debugging you might pepper your code with lines like these: console.log('foo = ' + foo + ', bar = ' + bar) I recommend to use...
From Rails 3.0.9, there is a method Hash#to_query that will turn a Hash into a query string:
There are cases when you need to select DOM elements without jQuery, such as: when jQuery is not available
Until recently, you could open a new tab via window.open when using execute_script in Selenium tests. It no longer...
CSS4 comes with :has. E.g. h1:has(b) would select all tags that contain a tag. This is implemented in...
Regular expressions in Javascript are represented by a RegExp object. There also is a regex literal as in many other...
A JS library that allows you to embed an iframe that automatically shrinks or expands to match its content.
With "attaching an event handler once" you possibly mean one of these two things: Register a function for an event...
Note This card does not reflect the current state of lazy loading technologies. The native lazy attribute could be used...
Ag (aka "the silver searcher") is a very fast replacement for grep. It will parse your .gitignore for additional speedup...
While you usually do not need a Content-Type on GET request (which have a blank body), an external API...
If you have jQuery code like this: if (condition) { $element.show(); } else { $element.hide(); } ... you can shorten this to: $element.toggle(condition);
You can say this in Javascript: $.fn.jquery => "1.11.1"
Redactor is yet another WYSIWYG editor. It definitely has its weak points, but I want to point out that it...
Our applications not only need to be functional, they need to be fast. But, to quote Donald Knuth, premature optimization...
What is a Cookie? Google it if you do not know. How are cookies transferred between your browser and...
The asset pipeline is one of Rails' two mechanisms how stylesheets, javascripts and images from your /assets folder are processed...
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...
Understand how nested attributes appear in the params. See how the Rails form helpers encode the names of nested...
PhantomJS has no binary builds for Linux, and building it yourself is painful. However, you can install it through npm...
First install Node.js / npm. Then you can install Bower through npm: sudo npm install -g bower