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Type of content	HTML 1.2	HTML 4.01	HTML5	Purpose
Heading	Yes	Yes	Yes	Organize page content by adding headings and subheadings to the top of each section of the page
Paragraph	Yes	Yes	Yes	Identify paragraphs of text
Address	Yes	Yes	Yes	Identify a block of text that contains contact information
Anchor	Yes	Yes	Yes	Link to other web content
List	Yes	Yes	Yes	Organize items into a list
Image	Yes	Yes	Yes	Embed a photograph or drawing into a web page
Table	No	Yes	Yes	Organize data into rows and columns
Style	No	Yes	Yes	Add CSS to control how objects on a web page are presented

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Type of content	HTML 1.2	HTML 4.01	HTML5	Purpose
Heading	Yes	Yes	Yes	Organize page content by adding headings and subheadings to the top of each section of the page
Paragraph	Yes	Yes	Yes	Identify paragraphs of text
Address	Yes	Yes	Yes	Identify a block of text that contains contact information
Anchor	Yes	Yes	Yes	Link to other web content
List	Yes	Yes	Yes	Organize items into a list
Image	Yes	Yes	Yes	Embed a photograph or drawing into a web page
Table	No	Yes	Yes	Organize data into rows and columns
Style	No	Yes	Yes	Add CSS to control how objects on a web page are presented

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body {
  text-align: center;
  margin: 0;
}

header {
  height: 60px;
  line-height: 60px;
  width: 100%;
  background: #7fbd42;

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<nav class="navbar navbar-default">
    <div class="container-fluid">
      <div class="navbar-header">
        <a class="navbar-brand" href="#">
          {{ user.name }} | Business Card Generator
        </a>
      </div>
    </div>
  </nav>
  <div class="container-fluid">

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## Prepare ###################################################################

# Remove RVM
rvm implode

# Ensure your homebrew is working properly and up to date
brew doctor
brew update

## Install ###################################################################

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gem install irbtools

Optional.

require 'irb/completion'
require 'map_by_method'
require 'what_methods'
require 'pp'
IRB.conf[:AUTO_INDENT]=true

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List the tables in your database:

.tables

List how the table looks:

.schema tablename

Print the entire table:

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#Simple Authentication with Bcrypt

This tutorial is for adding authentication to a vanilla Ruby on Rails app using Bcrypt and has_secure_password.

The steps below are based on Ryan Bates's approach from Railscast #250 Authentication from Scratch (revised).

You can see the final source code here: repo. I began with a stock rails app using rails new gif_vault

##Steps

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Moving from jQuery

Events

// jQuery
$(document).ready(function() {
  // code
})

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Commands I Commonly Use

1. Clone an existing repository:

   git clone <repo>

   (e.g. https://gist.github.com/1125520.git).

2. [Checkout and pull an existing branch][gcp]: