Celso de Sá

celsodesa

  • 18 Courses Completed
  • 25 Screencasts Watched
  • 169,050 Total Points

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Ruby: 9 Courses Completed

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Rails for Zombies

Discontinued

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Try Ruby

Getting Started With Ruby on Rails

Learn the basic building blocks of Ruby, all in the browser.

  • All For One, One For All

    Get an introduction to numbers, Strings, properties, and methods.

  • There Are Always Two

    Learn about conversions, arrays, variables, and more methods.

  • Third Time's The Charm

    Review printing, brackets, and String manipulation.

  • Fourth and Short

    Take a shot at method chaining, hashes, keys, and values.

  • The Highest of Fives

    Study up on blocks, directories, and method arguments.

  • Sixth Sense

    Start building methods, libraries, popups, and HTML with Ruby.

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Rails for Zombies 2

Getting Started With Ruby on Rails

Learn more Rails with this sequel to the infamous Rails for Zombies course. Increase your Ruby on Rails knowledge with even more zombie learning.

  • From the Ground Up

    Installing Rails, creating a Rails app, database migrations, the command line, Ruby 1.9 hash syntax, Bundler, database configuration

  • Models Still Taste Like Chicken

    Named scopes, callbacks, has_one, relationship options, using Includes, has_many :through

  • Rest In Pieces

    Revisiting URL helpers, forms & input helpers, understanding REST, nested resources, view partials, other view helpers

  • Asset Packaging and Mailing

    Sending attachments in mail, asset tags, using the Asset Pipeline, CoffeeScript, creating and sending mail, SCSS, using the JavaScript manifest

  • Rendering Extremities

    Custom RESTful routes, creating AJAX links, rendering custom JSON, AJAXified forms, controller rendering options, sending server JavaScript, using JSON data

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Rails for Zombies Redux

Getting Started With Ruby on Rails

Learn Ruby on Rails, an open-source framework for the Ruby programming language. Rails for Zombies will teach you all the Rails basics with a zombie flair.

  • Deep in the Crud

    How we work with a database in Rails by using Create, Read, Update, and Destroy (CRUD).

  • Models Taste Like Chicken

    We'll learn about ActiveRecord models, validations, and relationships.

  • The Views Ain't Always Pretty

    Get experience linking between views, using conditionals, and how to lookup documentation on common view helpers.

  • Controllers Must Be Eaten

    Sitting between our Models and Views are the Controllers, which use instance variables to keep our code organized.

  • Routing Into Darkness

    Learn how to direct requests to your app to the correct controller actions.

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Ruby Bits

Ruby Language

Learn the core bits every Ruby programmer should know. This Ruby tutorial builds upon the basics to keep enhancing your Ruby knowledge.

  • Expressions

    An overview of best practices for writing expressions in Ruby

  • Methods and Classes

    passing optional arguments, raising exceptions, using begin/rescue/end, attr_accessor vs. attr_reader

  • Classes

    Encapsulation, instance & private methods, inheritance, and refactoring

  • ActiveSupport

    Helpers that are built on top of the Ruby Language (arrays, dates, hashes, numbers, and strings

  • Modules

    Namespacing methods, Mixins vs. class inheritance, method hooks, ActiveSupport::Concern

  • Blocks

    Iterating and yielding, passing arguments, returning variables, Enumerable, and refactoring

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Ruby Bits Part 2

Ruby Language

Learn the more advanced bits every Ruby programmer should know. This advanced Ruby tutorial will help you take your Ruby knowledge to the next level.

  • Blocks, Procs & Lambdas

    An advanced look at code blocks and how to use procs and lambdas to encapsulate blocks of code

  • Dynamic Classes & Methods

    Techniques for defining, finding, and calling methods dynamically at runtime

  • Understanding Self

    A look at how Ruby uses the value of self and how to change self as your program executes

  • Missing Methods

    Using method_missing to capture, delegate, and respond to methods that don't exist

  • DSL Part 1

    A brief intro to writing Domain Specific Languages in Ruby

  • DSL Part 2

    More advanced tips and techniques for writing DSLs

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Rails Testing for Zombies

Rails Testing

Learn Rails testing for your applications with these testing fundamentals. Brush up on testing best practices with Rails Testing for Zombies.

  • Test Unit

    Testing philosophies, overview of Test Unit, TDD (Test Driven Development), and using assertions

  • Model Testing

    Preparing the database, running tests, using fixtures, and testing relationships

  • Cleaning it up

    Writing custom assertions, using Test Helper, and introducing Shoulda

  • Mocks and Stubs

    Understanding and using mocks and stubs with Mocha

  • Integration Tests

    Rails integration commands, integration testing with Capybara, and writing and using helper methods

  • Using Factories

    Creating factories, adding associations between factories, and implementing factories in your tests

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Testing with RSpec

Rails Testing

Learn to use this trusted testing framework for Ruby applications. Brush up on testing best practices with our Testing with RSpec course.

  • Introduction

    An overview of RSpecs basic syntax and installation.

  • Configuration & Matchers

    Setting up RSpec in a Ruby or Rails project and digging into some RSpec Matchers.

  • DRY Specs

    See how to organize your specs better making readability much easier.

  • Hooks & Tags

    Before hooks, shared examples and RSpecs use of metadata.

  • Mocks & Stubs

    A tour through how RSpec uses mocks and stubs.

  • Custom Matchers

    Walkthough the creation of a custom matcher from scratch.

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Rails Best Practices

Learn Rails best practices with the most useful Rails patterns and techniques. If you're a Rails developer, consider this your new Rails programming playbook.

  • Controllers in Space

    Fat model/skinny controller, named scopes, scopes with lambda, default scopes, model creation scopes, skipping a filter

  • Controller Command

    Nested attributes, models without the database, using Presenters, rejecting SQL injection, Rails 3 responder syntax

  • Model Pitfalls

    Basic & compound indices, protecting your attributes, using default database values, using callbacks properly, improving validation, database seeding

  • Model Bert

    Optimizing n+1 queries, using counter_cache, batches of find_each, applying The Law of Demeter, using to_s and to_param in the model

  • Froggy Views

    Refactoring views, using helpers, rendering content with partials, handling empty strings, using content_for, meta yield

Ruby: 15 Screencasts Watched

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Intro to JRuby

Core Ruby Classes

Rails Anatomy

RVM

Asset Pipeline Patterns

Rails App From Scratch - Part 1

Ruby Idioms

Delayed Job

Rails App From Scratch - Devise

RubyTapas: Naming Things

RubyTapas: Screen Scraping Gateway

RubyTapas: Break With Value

Pearson: Rails Tutorial - Part 1

Rails-API - Part 1

Soup to Bits: Rails for Zombies

JavaScript: 3 Courses Completed

  • Just Enough JavaScript

    Creating variables, dialogs, object & string functions, number-related operations, working with arrays.

  • Take Off

    Downloading jQuery, minified Javascript, loading jQuery, the DOM & jQuery selection, nested elements, pseudo-classes & direct descendants.

  • View from 30,000 Feet

    Direct manipulation with CSS, manipulating multiple attributes, adding & removing classes, toggling classes, hiding & showing content.

  • Contents may shift

    Retrieving & setting text content with text(), querying & setting DOM with html(), manipulating DOM with append() & prepend(), creating peers with :before & :after, adding & removing nodes.

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    Fasten your Seatbelts

    Using document.ready, writing named functions, using click event listeners, keyboard events, animations, AJAX load()

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CoffeeScript

CoffeeScript

Learn CoffeeScript, the powerful little language that compiles into JavaScript. Take a sip of our CoffeeScript tutorial & learn to get more done with less code.

  • Variables and Functions

    An overview of variables and functions

  • Applied jQuery

    Converting jQuery to CoffeeScript

  • Conditionals & Operators

    Conditionals, chained comparisons, switch cases, and existential operators

  • Arrays, Objects, Iterations

    Using arrays, object literals, loops, list comprehension, and splat arguments

  • Applied jQuery II

    Understanding and using jQuery object notation

  • Object Orientation

    Classes, class inheritance, property arguments

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Try jQuery

jQuery

Learn the basic building blocks of jQuery 2.0 and enjoy new video tutorials for beginners with related programming challenges.

  • Introduction to jQuery

    A gentle introduction to what jQuery is, and what it can do.

  • Traversing the DOM

    Search & walk through the DOM with selectors and traversing.

  • Working with the DOM

    Add & remove from the DOM, more traversing, and user events.

  • Listening to DOM Events

    Listen for events, handle them, and change the default event behavior of web browsers.

  • Styling

    Before landing, tame CSS with jQuery and animate elements on the page.

JavaScript: 2 Screencasts Watched

Most Useful jQuery Libraries

AngularJS - Part 1

HTML/CSS: 4 Courses Completed

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Functional HTML5 & CSS3

Learn to build functional sites with HTML5 & CSS3. Watch design video tutorials and take programming challenges with our Functional HTML5 & CSS3 course.

  • HTML5

    Learn about the new tags in HTML5

  • CSS3

    Review the new properties in CSS3

  • Header & Navigation

    Build a functional header and navigation area

  • Content

    Develop the content sections of a site

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    Footer & Forms

    Learn about new form elements and build a functional footer

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Assembling Sass

CSS Preprocessors

Learn Sass and start improving your front-end CSS workflow. Try Sass on large-scale applications for efficient, time-saving styling.

  • Foundation

    An introduction to Sass, imports, comments, and nesting.

  • Variable

    Creation and use of recallable information.

  • Mixin

    Writing reusable styles mixed with optional arguments.

  • Extend

    Easily manage CSS class reuse and inheritance in the stylesheet, rather than HTML.

  • Directive

    A primer on the programmatic tools in Sass, including functions and each loops.

  • Math + Color

    Perform arithmetic and color alterations directly to stylesheet values.

  • Responsive

    Simplify and optimize your responsive design workflow via Sass.

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CSS Cross-Country

Intermediate CSS

Learn the fundamentals & foundational elements of CSS with CSS Cross-Country. Review all the web-styling necessities for front-end efficiency.

  • Frost-Proof Fundamentals

    Adding style, selectors, the cascade, and floats

  • Clear Carving

    Clearing floats, inheritance, and specificity

  • Box Bindings

    The box model, positioning, and z-index

  • Grooming Your Code

    DRY, display types, and centering

  • CSS Safety

    Protecting your layout and specificity problems

  • Image Issues

    Image use and image cropping

  • Sprightly Slaloms

    Image replacement and sprites

  • Pseudo Sitzmark

    Pseudo classes and pseudo elements

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Fundamentals of Design

Design

Improve the visual competency of any website or application by keeping design in mind. Learn the fundamental design principles of typography, color, and layout.

  • Typography

    Learn to recognize beautiful and functional type.

  • Colors

    Review color theory and application principles.

  • Layout

    Familiarize yourself with visual hierarchy and balance.

HTML/CSS: 2 Screencasts Watched

CSS3Buttons Gem

Responsive Web with Initializr

Git: 1 Course Completed

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Try Git

Git

Learn how to use Git by reviewing the basic concepts of Git version control. Try out this introductory course that was created with GitHub.

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    Discover Git

    Discover the basics of Git, including how to initialize a repo. Learn how to add, commit, and push your code to GitHub.

Electives: 1 Course Completed

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Discover Drive

Electives

Learn to build applications with the Google Drive API to organize, back up, and share photos, videos, and other documents in the cloud.

  • Save to Drive Button

    Creating a simple button for saving files to Google Drive.

  • Google Picker with Drive

    Creating a widget for selecting and uploading files.

  • Authenticating with Drive

    Using the Google API Ruby Client to request access to a user’s Drive.

  • Uploading Files

    Performing multipart and resumable uploads with the Google API Ruby Client.

  • Retrieving Metadata

    Retrieving metadata for single files and lists of files, as well as performing file searches.

  • Downloading & Sharing Files

    Downloading files from Drive and managing permissions.

  • Updating & Deleting Files

    Updating, trashing, and permanently deleting files.

  • Folders

    Organizing files with folders and using the Application Data Folder.

  • Push Notifications

    Getting notified when a file changes.

  • Installing And Showcasing Your Application

    Installing your application to the Drive UI and listing it in the Chrome Web Store.

Electives: 6 Screencasts Watched

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Getting Started with Clojure - Part 1

Heroku

Intro to MVC

Unix Basics - Part 1

Agile Best Practices

Thoughtbot: Vim for Rails Developers