Mathieu Fosse pointcom

pointcom / module-prepend.rb

Created January 23, 2018 13:21

	module IntegerExtension
	def to_s
	"this is an integer: #{super}"
	end
	end

	Integer.prepend(IntegerExtension)

	puts 1.to_s

pointcom / array-dig.rb

Last active January 23, 2018 10:42

	client = {client: { firstname: "bobby", lastname: "brown"}}

	# Using the the [] getter
	firstname = client[:client][:firstname]
	=> "bobby"

	# Using the new dig method, it gives you the
	# same result the best is coming
	firstname = client.dig(:client, :firstname)
	=> "bobby"

pointcom / refinement.rb

Created January 20, 2018 09:48

pointcom / array.rb

Last active January 24, 2018 10:22

	# You can create an array of one string element with *
	my_array = *"hello"
	=> ["hello"]

	arr = %w(a b c)
	=> ["a", "b", "c"]

	head, *tail = arr
	=> ["a", "b", "c"]

pointcom / shortcut-builder.rb

Last active January 13, 2018 09:51

	name = "Stuart"

	# To build a string and escape double quote at the same time
	%q(Hello, my name is "#{name}")
	=> "Hello, my name is \"\#{name}\""

	# The same exist for single quote
	%Q(Hello, my name is "#{name}")
	=> "Hello, my name is \"Stuart\""

pointcom / min-enumerable.rb

Created January 8, 2018 14:50

	# http://ruby-doc.org/core-2.5.0/Enumerable.html#method-i-min
	# Ruby 2.2
	[1, 2, 3, 4, 5].min(2)
	=> [1, 2]

	[3, 4, 5].max(3)
	=> [5, 4, 3]

pointcom / safe-navigation-operator.rb

Created January 8, 2018 11:01

pointcom / float-round.rb

Created January 8, 2018 10:27

	# http://ruby-doc.org/core-2.5.0/Float.html#method-i-round
	# Ruby >= 2.4

	(2.5).round(half: :up)
	=> 3
	(2.5).round(half: :down)
	=> 2

pointcom / regexp-named_captures.rb

Last active January 24, 2018 10:13

	# http://ruby-doc.org/core-2.5.0/MatchData.html#method-i-named_captures
	# Ruby >= 2.4
	/(?<first_name>.+) (?<last_name>.+)/.match('Bobby Brown').named_captures
	=> {"first_name"=>"Bobby", "last_name"=>"Brown"}

pointcom / regexp-named_captures.rb

Created January 8, 2018 10:19

	# http://ruby-doc.org/core-2.5.0/MatchData.html#method-i-named_captures
	# Ruby >= 2.4
	/(?<first_name>.+) (?<last_name>.+)/.match('Bobby Brown').named_captures

	# This refinement will monkey patch the Integer#to_s method
	# this change will be applied only in the current context
	module IntegerRefinement
	refine Integer do
	def to_s
	"this is an integer: #{super}"
	end
	end
	end