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# Given two 'linked' array, you want to sort one and reorder the second to preserve the same sequence of the first:

a = [3,2,7,5,1,9,3]
b = [:a, :b, :c, :d, :e, :f, :g]

def a.sort_with(arr)
  raise "the two array must have the same size" if size!=arr.size
  h = self.collect.with_index{|e,i| [e, arr[i]]}.sort{|x,y| y.first<=>x.first}
  [h.map{|e| e.first}, h.map{|e| e.last}]
end

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FIXME:
  WARNING: Nokogiri was built against LibXML version 2.7.3, but has dynamically loaded 2.7.8
                  or
  ERROR -: Incompatible library version: nokogiri.bundle requires version 11.0.0 or later, but libxml2.2.dylib provides version 10.0.0


gem uninstall nokogiri libxml-ruby
 
brew update
brew uninstall libxml2

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# NOTE below gems are only for development purpose can be removed and commented out as per requirement
group :development do
  gem 'rails-erd','1.0.0'
  gem 'hirb','0.7.0'
  gem 'railroady'
  gem 'itslog','0.6.1'
  gem 'quiet_assets'
  gem 'sextant' # now included in Rails 4.0
end

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module Zo
  extend ActiveSupport::Concern

  included do
    # ...
  end

  def an_instance_method
    # ...
  end

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/* Set up Git Configuration */

git config --global user.email "you@yourdomain.com"

git config --global user.name "Your Name"

git config --global core.editor "vi"

git config --global color.ui true

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module StringToArrayConverter
  NUMERIC_ARRAY_REGEX = /^\[([\d,\s\.\-\+]+)\]$/

  def to_numeric_array
    m = NUMERIC_ARRAY_REGEX.match(self.strip)
    m[1].split(",").map{|e| e.include?(".") ? e.to_f : e.to_i}
  end

  def is_a_numeric_array?
    !NUMERIC_ARRAY_REGEX.match(self.strip).nil?

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Spec

require 'rails_helper'

describe "Foo", type: :model do
  it "ex3" do
    puts "--ex3--"
    puts "rep: #{@rep.inspect}"
    puts "Report count: #{Report.count}"

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We couldn’t find that file to show.

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$(document).ready ->
  $("a.sortable").on "click", (e) ->
    e.preventDefault()

    id      = $(this).data('id')
    dir     = $(this).data('direction') # "up" or "down"
    sel     = $("#item_#{id}") # selector of current

    $.ajax
      url: "/activities/#{id}/move"

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# Given an array
arr = [1, 2, 3]

# I want to build an hash starting from an array
# like { 1 => 1, 2 => 4, 3 => 9} (where the values are the square of keys)

# long form:
hash = {}
arr.each do |e|
  hash[e] = e**2