ebouchut

class MyController < ApplicationController  
  
  def action_xyz
    if request.xhr?
      set_cache_buster
    end
    
    render json: {what: 'ever'}
  end

ebouchut

<%
=begin 
%>

  This <a href="javascript:void(0);">will not be in the result HTML page.</a>
  
<%
=end
%>

ebouchut

namespace :time_travel do

  desc "Description of the lightning task"
  task :lightning do |t|
   # ...
  end
  
  desc "Description of the de_lorean task"
  task :de_lorean do |t|
   # ...

ebouchut

require "benchmark"

array = [...] 

Benchmark.bm(7) do |x|
 x.report("map")  { array.map(&:upcase) }
 x.report("map!") { array.map!(&:upcase) }
end

ebouchut

def convert_to_proc(&proc)
    proc
end

hello = convert_to_proc { |name| puts "Hello #{name}" }
hello.call("Eric") # => "Hello Eric"

ebouchut

git config `push.default`:

  – `nothing`: do nothing (make the user say what they mean)
  – `matching`: push all local branches for which a remote branch of the same name exists
  – `upstream`: push only the current branch, push it to its upstream, making push and pull symmetric
  – `simple`: like upstream, but only if the branch names match (will become default in 2.0)
  – `current`: push just the current branch

ebouchut

# I use  find -print0 and xargs -0 when the filenames contain characters used as delimitors,
# like space in this case
#

find '/tmp/temp results' -name '*.tmp' -print0 | xargs -0  -n 1  -J %  rm '%'

ebouchut

class User                     # class User < ActiveRecord::Base
  include ActiveModel::Model   # 
  
  attr_accessor :name, :age
  
  validates :name, presence:     true
  validates :age,  presence:     true,
                   numericality: { only_integer: true, greater_than: 0 }
end

ebouchut

############ 
## Problem
############ 

bundle exec guard

...
(This may be due to symlinks pointing to parent directories).

        Duplicate: /some/where/ebouchut/www/netadge/bo/rubymine/trunk/doc/simplecov

ebouchut

# I want to resize an image  from 600x128 to 225x100 while keeping its aspect ratio.
# Resizing the width to 225 while keeping the aspect ratio makes one dimension (height)
# smaller (225x48) than what I want to obtain (225x100).

# The workaround is to resize first, 
# then increase the canvas of the other dimension (height)
# to obtain the desired size (225x100) then center the image in the canvas.


#~~~~~~~~~~~~~~~~~~~~~