ImageMagick takes a string with several options when cropping an image. See the command line options for how to provide...
In the tradition of our PostgreSQL cheat sheet for MySQL lamers, here is a cheat sheet for Jasmine when you...
Here is a Javascript function reloadUsers() that fetches a HTML snippet from the server using AJAX and replaces the current...
When testing code that uses pushState / replaceState, your browser will appear to navigate away from http://localhost:3000/specs (or wherever...
Run bundle update cucumber capybara cucumber-rails to update to the newest versions. Backup your features/support/path.rb to be able to...
Angular 1.3+ has an alternative getter/setter pattern: You can bind ng-model to an accessor function. This is a function...
JavaScript objects can have getter and setter functions that are called when a property is read from or written to...
This is a problem when using Selenium with Firefox. We recommend using ChromeDriver for your Selenium tests. This setup allows...
Capybara-screenshot can automatically save screenshots and the HTML for failed Capybara tests in Cucumber, RSpec or Minitest. Requires Capybara...
Rails includes a way to see what an e-mail will look like. Integration to RSpec All you need to...
You can do so much more than console.log(...)! See the attached link for a great breakdown of what the developer...
Rails guide that covers PostgreSQL-specific column types and usages for Active Record. You should especially keep in mind the...
capybara_element['attribute_name'] allows accessing an element's attributes in Capybara. A few examples: find('#my_element')['class']
Cucumber will clean up files you've uploaded in your Cucumber features automatically with the attached code. Put the file...
RSpec::Matchers.define :be_naturally_sorted do match do |array| array == array.natural_sort end end See RSpec: Where to put custom...
This step will pass if the specified select is sorted. Then /^the "(.*?)" select should be sorted$/ do |label, negate|
Chances are you're seeing the warning repeated a lot of times, maybe thousands of times. Here's how to...
If you want a class-like construct in JavaScript, you can use the module pattern below. The module pattern gives...
Sometimes you want Angular to watch an object only until a certain state is reached (e.g. an object appears in...
Copy data from LibreOffice Calc When you copy data from multi-line cells in LibreOffice Calc, quotation marks are automatically...
The Rails asset pipeline improves delivery of application assets (javascripts, stylesheets, images, fonts). Here are some basic facts about its...
When you run code inside a $watch expression that forces a repaint (e.g. by computing an element's width, or...
Option 0: Download from the official page (preferred) Open https://googlechromelabs.github.io/chrome-for-testing/ In Section "Stable" > chromedriver / linux64 > Download ZIP from...
A very clever hack to parse a structured URL object is to create a element and set its href to...