| [3] pry(main)> class E1 < RuntimeError | |
| [3] pry(main)* end | |
| => nil | |
| [4] pry(main)> E2 = E1 | |
| => E1 | |
| [5] pry(main)> E2 | |
| => E1 | |
| [6] pry(main)> def r1 | |
| [6] pry(main)* raise E2 | |
| [6] pry(main)* rescue E1 |
| $ /opt/vagrant/embedded/bin/ruby | |
| /opt/vagrant/embedded/lib/ruby/2.4.0/rubygems/specification.rb:17:in `require': dlopen(/opt/vagrant/embedded/lib/ruby/2.4.0/x86_64-darwin13/stringio.bundle, 9): no suitable image found. Did find: (LoadError) | |
| /opt/vagrant/embedded/lib/ruby/2.4.0/x86_64-darwin13/stringio.bundle: malformed mach-o image: load command #17 length (0) too small in /opt/vagrant/embedded/lib/ruby/2.4.0/x86_64-darwin13/stringio.bundle | |
| /opt/vagrant/embedded/lib/ruby/2.4.0/x86_64-darwin13/stringio.bundle: malformed mach-o image: load command #17 length (0) too small in /opt/vagrant/embedded/lib/ruby/2.4.0/x86_64-darwin13/stringio.bundle - /opt/vagrant/embedded/lib/ruby/2.4.0/x86_64-darwin13/stringio.bundle | |
| from /opt/vagrant/embedded/lib/ruby/2.4.0/rubygems/specification.rb:17:in `<top (required)>' | |
| from /opt/vagrant/embedded/lib/ruby/2.4.0/rubygems.rb:1334:in `require' | |
| from /opt/vagrant/embedded/lib/ruby/2.4.0/rubygems.rb:1334:in `<module:Gem>' | |
| from /opt/vagrant/embedded/lib/ruby/2.4.0/rubygems.rb: |
| User.new.job # => unsaved Job | |
| User.create!.job # => saved Job | |
| User.last.job # => existing Job |
| npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install" | |
| npm ERR! node v4.8.4 | |
| npm ERR! npm v2.15.11 | |
| npm ERR! path ../coffee-script/bin/coffee | |
| npm ERR! code EINVAL | |
| npm ERR! errno -22 | |
| npm ERR! syscall symlink | |
| npm ERR! EINVAL: invalid argument, symlink '../coffee-script/bin/coffee' -> '/exercism/node_modules/lineman/node_modules/.bin/coffee' |
| require 'benchmark' | |
| def fetch_with_block(arg) | |
| arg.fetch(:sym) { "str" } | |
| end | |
| def fetch_with_str(arg) | |
| arg.fetch(:sym, "str") | |
| end |
Feel free to use Avdi-style constants as methods when not calling the method repeatedly in a short period of time. Otherwise, consider the performance trade-off.
| namespace :generate do | |
| desc "generate N comments, typically for performance testing" | |
| task comments: [:connection] do | |
| n = ENV['N'].to_i | |
| abort 'specify the number of comments to generate: N=<count>' if n.zero? | |
| puts "Generating #{n} comments" | |
| ActiveRecord::Base.connection.execute <<~SQL | |
| INSERT INTO comments (submission_id, user_id, body, html_body, created_at, updated_at) ( | |
| SELECT | |
| submission_id, |
| #!/bin/sh | |
| # Used with https://github.com/nilbus/docker-hook to deploy $IMAGE | |
| # when triggered by a Docker Hub webhook. | |
| IMAGE='nilbus/nilbus.com' | |
| docker pull $IMAGE | |
| docker service update http --image $IMAGE |
| Please note that these warnings are just used to help the Homebrew maintainers | |
| with debugging if you file an issue. If everything you use Homebrew for is | |
| working fine: please don't worry and just ignore them. Thanks! | |
| Warning: Unbrewed dylibs were found in /usr/local/lib. | |
| If you didn't put them there on purpose they could cause problems when | |
| building Homebrew formulae, and may need to be deleted. | |
| Unexpected dylibs: | |
| /usr/local/lib/libcspec.0.dylib |
| def update | |
| find_user | |
| if @user.update_attributes(user_params) | |
| respond_to do |format| | |
| format.html { | |
| redirect_to admin_user_path(@user) | |
| flash[:notice] = 'User updated' | |
| } | |
| format.js { |