I had to deal with JavaScript Undefined Error while accessing a specific CKEditor instance to fill in text. Ensure everything...
Ask before leaving an unsaved CKEditor Vanilla JavaScript way, but removes any other onbeforeunload handlers: $(function(){ document.body.onbeforeunload = function() { for(editorName...
When you are working with Backbone models and inheritance, at some point you want to overwrite inherited methods but call...
Sometimes you have a test expectation but actually want a better error message in case of a failure. Here is...
RulersGuides.js is a Javascript library which enables Photoshop-like rulers and guides interface on a web page Also available as...
If you get this error while trying to resize an openstack instance: # nova resize fooinstance 16 --poll ==> /var/log/nova/nova-scheduler.log <==
Crazy hack. Might be useful one day. The code required has since been extracted into a library.
Clever hack to allow user interaction without Javascript (by using radio buttons and selecting on :checked).
You might sometimes use self to capture the context of this before it is destroyed by some function. Unfortunately self...
Opal is a source to source ruby to javascript compiler, corelib and a runtime implementation that currently passes 3000 rubyspecs...
TLDR: This card explains which threads and processes interact with each other when you run a Selenium test with Capybara...
An annoying part of using font icons is that the icons usually need to live in the DOM. This is...
When I upgraded from 0.5.4 PDFKit deadlocked or crashed when an ApplicationController::RouteError occured. If this error happens only because...
Search engines, such as Google and Bing are engineered to crawl static web pages, not javascript-heavy, client-side apps...
We proudly release our safe_cookies middleware into public beta and just published it on Github. Features are:
So you client has asked you to implement a row of buttons to like the URL on Facebook, Twitter and...
You might not know that Rails disables CSRF protection in tests. This means that if you accidentally forget to send...
Copy the attached file to features/support. This gets you a convenience method: Capybara.javascript_test? Is true for Selenium, capybara-webkit...
Working with lists in Javascript is painful because the native Array class is so poorly designed. One way to reduce...
Angular comes with different types of services. Each one with its own use cases. All of these services are singletons...
The asset pipeline (which is actually backed by sprockets) has a nice feature where templates ending in .jst are compiled...
Consul 0.10.0 now allows multiple power mappings for nested resources. When using nested resources you probably want two power
Box shadows are awesome. Unfortunately they are also very costly to render. You will rarely notice the rendering time on...