Eric Bouchut ebouchut

## start_with_js
prefix = "http://";
url    = "http://example.com";

url.substring(0, prefix.length) === prefix; // true

## netcat_listen_on_port
nc -kl 12345   # netcat listen on port 12345 and keep-alive

## stub_a_rails_controller_method_in_a_test

describe MyController do

  before do
    # ...

    # Stub MyController.action to always return OK
    def @controller.action
        render status: 200, nothing: true
    end

## rails_i18n
en:
  # ~~~~~~~~
  # Model Errors
  # ~~~~~~~~
  activemodel:
    errors:
      models:
        bidrequest:
          not_json: "Not a valid JSON"
          url_not_valid: "Not a valid URL"

## rails_controller_cache_buster_xhr_request
class MyController < ApplicationController

  def action_xyz
    if request.xhr?
      set_cache_buster
    end

    render json: {what: 'ever'}
  end

## rake_task
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|
   # ...

## ruby_benchmark
require "benchmark"

array = [...]

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


## ruby_block_to_proc
def convert_to_proc(&proc)
    proc
end

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

## git_push_default
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

## find_xargs_file_with_name_containing_space
# 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 '%'
	prefix = "http://";
	url = "http://example.com";

	url.substring(0, prefix.length) === prefix; // true

	describe MyController do

	before do
	# ...

	# Stub MyController.action to always return OK
	def @controller.action
	render status: 200, nothing: true
	end
	en:
	# ~~~~~~~~
	# Model Errors
	# ~~~~~~~~
	activemodel:
	errors:
	models:
	bidrequest:
	not_json: "Not a valid JSON"
	url_not_valid: "Not a valid URL"
	class MyController < ApplicationController

	def action_xyz
	if request.xhr?
	set_cache_buster
	end

	render json: {what: 'ever'}
	end
	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\|
	# ...
	require "benchmark"

	array = [...]

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

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