RubyMine allows bookmarking lines of code. This is super-helpful when working on a complex problem. I've been using...
Sass lets you easily specify multiple selectors at once like this: .some-block &.has-hover, &:hover outline: 1px solid red...
ImageMagick has a command line tool called identify which can read image metadata: >identify -verbose DSC00136.JPG Image: DSC00136.JPG Format: JPEG...
Note: The behaviour of Spreewald's within step is as described below for version < 1.9.0; For Spreewald >= 1.9.0 it is...
Barby is a great Ruby gem to generate barcodes of all different sorts. It includes support for QR codes via...
This is not an issue in newer versions of HAML (starting with 5.0.0), as the ugly-option was removed...
Looks like ActiveState is trying to market a new Ruby distribution for Enterprises: ActiveRuby Enterprise Edition is designed for businesses...
There are various ways to run external commands from within Ruby, but the most powerful ones are Open3.capture3 and Open3.popen3...
run-one is a wrapper script that won't run the given command while another instance of it is running...
/home/.../ruby/gems/2.1.0/gems/bundler-1.14.3/lib/bundler/rubygems_ext.rb:45:in `full_gem_path': uninitialized constant Bundler::Plugin::API::Source (NameError) Solution: Upgrade Rubygems beyond 2.6.9...
Sometimes your code has long lines: describe 'foo' do describe 'bar' do really_long_line_really_long_line_really_long...
window.getSelection().toString(); Browser support: IE9+, Android 4.3+, Safari 5+
You can easily have a JavaScript hash/object that returns a default value for unset keys/properties -- as long as you need...
There seems to be a nasty bug in Chrome 56 when testing with Selenium and Capybara: Slashes are not written...
Adding a gem means you take over the liability towards the external code. Checklist Based on "To gem, or not...
We have projects that have been developed using many different versions of Ruby. Since we do not want to...
If you use Angular 1.4+ together with Angular Animate, all ng-show, ng-hide, ng-class etc. are animated on...
On application servers, gems are usually bundled into the project directory, at a location shared across deployments. This is usually...
deadlock 0x7f8a4160a360: sleep:- (main) - /home/me/.rbenv/versions/1.8.7-p375/lib/ruby/gems/1.8/gems/bundler-1.14.3/lib/bundler/worker.rb:43 deadlock 0x7f8a38c03b08: sleep:- - /home/me/.rbenv/versions/1.8.7-p375/lib/ruby/gems/1.8/gems/bundler-1.14.3/lib/bundler/worker.rb:56 *** longjmp causes uninitialized stack frame ***: /home/me/.rbenv/versions/1.8.7-p375/bin/ruby terminated
There are some inconvenient Gem dependencies. Resolve them by adding/modifying these lines in your Gemfile: gem 'guard-livereload', '>= 2.5.2', require...
TruffleRuby is an experimental Ruby implementation that tries to achieve ~10x performance over MRI. This has been on our radar...
Sometimes huge refactorings or refactoring of core concepts of your application are necessary for being able to meet new requirements...
You may know the double asterisk operator from Ruby snippets like Dir['spec/**/*_spec.rb'] where it expands to an arbitrary...