Chris McGrath chrismcg

## procs-vs-lambda.md

      
              1 file
            
          
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                mislav
                / procs-vs-lambda.md
            
            
              Last active
              March 26, 2021 18:34
            
              
                Jim Weirich on the differences between procs and lambdas in Ruby
              
          
    Jim Weirich:

This is how I explain it… Ruby has Procs and Lambdas.  Procs are created with Proc.new { }, lambdas are created with lambda {} and ->() {}.


In Ruby 1.8, proc {} creates lambda, and Ruby 1.9 it creates procs (don't ask).


Lambdas use method semantics when handling parameters, procs use assignment semantics when handling parameters.

This means lambdas, like methods, will raise an ArgumentError when called with fewer arguments than they were defined with. Procs will simply assign nil to variables for arguments that were not passed in.

  
## .rspec
--colour
-I app

## gist:1750368
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
        <title>Stripe Sample Form</title>

        <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
        <script type="text/javascript" src="https://ajax.aspnetcdn.com/ajax/jquery.validate/1.8.1/jquery.validate.min.js"></script>
        <script type="text/javascript" src="https://js.stripe.com/v1/"></script>
        <script type="text/javascript">

## index.html.haml
- title "#{@game.name}"
%h1= yield(:title)
#documents
	= form_tag(assessment_game_documents_path(@game)) do
		%ul
			%script{ type: "text/x-handlebars" }
				{{#collection Game.DocumentsCollectionView contentBinding="Game.documentsController"}}
				%li {{content.name}}
				{{/collection}}

## t.rb
require 'psych'

class MyEmitter < Psych::Visitors::Emitter
end

o = "hello world"

visitor = Psych::Visitors::YAMLTree.new {}
visitor << o
my_emitter = MyEmitter.new $stdout

## gist:1207141
rescue_from = {}

# Associate status code with an HTTP status code.  First argument is the status
# code, second argument is a function that accepts the XHR object.  For example:
#     $.rescueFrom 404, (xhr)-> alert("Oh no, page not found!")
$.rescueFrom = (status, fn)->
  rescue_from[status] = fn

# Default handling for unsuccessulf HTTP status code.  Finds and calls most
# appropriate handler based on the HTTP status code (see `$.rescueFrom`).

## readme.md

      
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                chriseppstein
                / readme.md
            
            
              Created
              August 31, 2011 21:57
                — forked from mislav/Gemfile
            
              
                How to integrate Compass with Rails 3.1 asset pipeline
              
          
    This gist is no longer valid. Please see Compass-Rails for instructions on how to install.

  
## demo.rb
# encoding: utf-8

s = "Blah \xe9 blah 헌글"

puts "BEFORE"
puts "encoding: #{s.encoding}"
puts "valid   : #{s.valid_encoding?}"
puts "text    : #{s}"

s = s.

## ack.rb
#!/usr/bin/env ruby
# Usage:
#
#    ./ack.rb your-query

require 'rubygems'
require 'bundler'

if query = ARGV[0]
  gem_dirs = Bundler.load.specs.map(&:full_gem_path).join(' ')

## bcr2000.rb
$LOAD_PATH.unshift(File.dirname(__FILE__))

require 'midi-winmm'
# tested with midi-winmm, but I assume will work with alsa-rawmidi

class Numeric
   def to_hex_str
     "%02x" % self
   end
end
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
	<title>Stripe Sample Form</title>

	<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
	<script type="text/javascript" src="https://ajax.aspnetcdn.com/ajax/jquery.validate/1.8.1/jquery.validate.min.js"></script>
	<script type="text/javascript" src="https://js.stripe.com/v1/"></script>
	<script type="text/javascript">
	- title "#{@game.name}"
	%h1= yield(:title)
	#documents
	= form_tag(assessment_game_documents_path(@game)) do
	%ul
	%script{ type: "text/x-handlebars" }
	{{#collection Game.DocumentsCollectionView contentBinding="Game.documentsController"}}
	%li {{content.name}}
	{{/collection}}
	require 'psych'

	class MyEmitter < Psych::Visitors::Emitter
	end

	o = "hello world"

	visitor = Psych::Visitors::YAMLTree.new {}
	visitor << o
	my_emitter = MyEmitter.new $stdout
	rescue_from = {}

	# Associate status code with an HTTP status code. First argument is the status
	# code, second argument is a function that accepts the XHR object. For example:
	# $.rescueFrom 404, (xhr)-> alert("Oh no, page not found!")
	$.rescueFrom = (status, fn)->
	rescue_from[status] = fn

	# Default handling for unsuccessulf HTTP status code. Finds and calls most
	# appropriate handler based on the HTTP status code (see `$.rescueFrom`).
	# encoding: utf-8

	s = "Blah \xe9 blah 헌글"

	puts "BEFORE"
	puts "encoding: #{s.encoding}"
	puts "valid : #{s.valid_encoding?}"
	puts "text : #{s}"

	s = s.
	#!/usr/bin/env ruby
	# Usage:
	#
	# ./ack.rb your-query

	require 'rubygems'
	require 'bundler'

	if query = ARGV[0]
	gem_dirs = Bundler.load.specs.map(&:full_gem_path).join(' ')
	$LOAD_PATH.unshift(File.dirname(__FILE__))

	require 'midi-winmm'
	# tested with midi-winmm, but I assume will work with alsa-rawmidi

	class Numeric
	def to_hex_str
	"%02x" % self
	end
	end