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Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt

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true and false vs. "truthy" and "falsey" (or "falsy") in Ruby, Python, and JavaScript

Many programming languages, including Ruby, have native boolean (true and false) data types. In Ruby they're called true and false. In Python, for example, they're written as True and False. But oftentimes we want to use a non-boolean value (integers, strings, arrays, etc.) in a boolean context (if statement, &&, ||, etc.).

This outlines how this works in Ruby, with some basic examples from Python and JavaScript, too. The idea is much more general than any of these specific languages, though. It's really a question of how the people designing a programming language wants booleans and conditionals to work.

If you want to use or share this material, please see the license file, below.

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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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#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]:

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.factory('TokenHandler', function() {
  var tokenHandler = {};
  var token = "none";

  tokenHandler.set = function( newToken ) {
    token = newToken;
  };

  tokenHandler.get = function() {
    return token;

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function consumer() {
  return new oauth.OAuth(
    "https://twitter.com/oauth/request_token", 
    "https://twitter.com/oauth/access_token", 
    keys.twitterConsumerKey, 
    keys.twitterConsumerSecret, 
    "1.0A", 
    "http://localhost:3000/sessions/callback", 
    "HMAC-SHA1"
  );   

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// Include our plug-ins
var gulp = require('gulp');
var mainBowerFiles = require('main-bower-files');
var exists = require('path-exists').sync;

// Create some task
gulp.task( 'copy-bower-dep', function() {

  // Replace files by their minified version when possible
  var bowerWithMin = mainBowerFiles().map( function(path, index, arr) {

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#Model 

@user.should have(1).error_on(:username) # Checks whether there is an error in username 
@user.errors[:username].should include("can't be blank")  # check for the error message 

#Rendering
response.should render_template(:index)

#Redirecting 
response.should redirect_to(movies_path)