On my Ubuntu MATE machine, switching applications with ALT + TAB was impossible, because it took nearly 2 seconds. The culprit...
There are several gems that make it easy to read and process xlsx files. Parsing the entire file at once...
When localizing model attributes via I18n you may run into errors like this: I18n::InvalidPluralizationData: translation data {...
...} can not be...
If another session is accessing your database you are trying to reset or drop you might have seen the following...
Here is some JavaScript code that allows you to click the screen and get the clicked element's text contents...
Use return to return from a method. return accepts a value that will be the return value of the...
I frequently find myself needing a combination of group_by, count and sort for quick statistics. Here's a method...
Sometimes modern Javascript projects get out of hand. A major culprit in this can be the messy handling of asynchronous...
before(:all) runs the block once before all of the examples. before(:each) runs the block once before each...
There are many approaches out there how you can import data from a legacy application to a new application. Here...
Scope is all about where something is visible. It’s all about what (variables, constants, methods) is available to you...
You should prefer native promises to jQuery's Deferreds. Native promises are much faster than their jQuery equivalent. Native promises...
Native promises have no methods to inspect their state. You can use the promiseState function below to check whether a...
You can use local copies of gems in your Gemfile like this: gem 'spreewald', path: '~/gems/spreewald' As soon as you...
ImageMagick can automatically crop surrounding transparent pixels from an image: convert input.png -trim +repage output.png
I often see the use of || to set a default value for a variable that might be nil, null or...
You can not use the hash_including argument matcher with a nested hash: describe 'user' do let(:user) { {id: 1...
Capybara clears cookies before each scenario, but not other client-side data stores. If your app is using localStorage or...
ActiveRecord::RecordNotFound errors provide quite meaningful error messages that can provide some insight on application details. Consider the following:
Rails 5 (don't know about the others) comes with an initializer wrap_parameters.rb. Here you can tell rails to wrap...
Put the line below in the respective env.rb file to make your action controllers raise an ActionController::UnpermittedParameters error when...
If your Snom 300 always keeps the same volume for headset and ringtone (as soon as you change one you...
select2 is a great jQuery library to make (large) fields more usable. For Bootstrap 3 there is select2-bootstrap-theme...
Capistrano has the concept of a "rollback" that comes in really handy in case of errors. When you notice that...