Chad Duffey

Chad Duffey

Seattle, WA

16,531

Total Points

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Skills & Experience

  • Company

    Dropbox

  • Job Title

    Development Manager

203 Achievements

  • Practice Functions
  • Iterating and Packing with Dictionaries
  • Introducing Dictionaries
  • Sequence Operations
  • Sequence Iterations
  • Getting to Know Tuples
  • Packing and Unpacking
  • Getting Info In and Out of Functions
  • Introduction to Functions
  • Meet Lists
  • Using Lists
  • Build an Application
  • Meet Python
  • Types and Branching
  • Functions and Looping
  • All Together Now
  • Introduction to HTTP
  • Covering Your Bases
  • Be Assertive!
  • What Is Testing?
  • Dungeon Game 2
  • Python Sets
  • Python Tuples
  • Python Dictionaries
  • Python Slices
  • Python Lists
  • Introducing JavaScript
  • Methods
  • Database Normalization
  • Python: Inheritance
  • Python: Instant Objects
  • Object-Oriented Programming
  • Perfect
  • Perform
  • Console I/O
  • Prepare and Plan
  • What a View
  • Exploring the Java Collections Framework
  • Organizing Data
  • Getting There
  • Perfecting the Prototype
  • Getting the REST You Need
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • Using your New Tools
  • Getting Started with Java
  • Say Hello to Django
  • Letter Game App
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • Finding the Data You Want
  • Getting Data from a Database
  • Number Game App
  • Shopping List App
  • Logic in Python
  • Python Data Types
  • Python For Beginners
  • Data, Databases and SQL
  • An Introduction to Swift Programming
  • How to Win Friends
  • Takin' Names
  • Hack-n-Slash
  • Python Inheritance
  • Broadcasting
  • Python Objects
  • Getting Started with Jekyll
  • Python Regular Expressions
  • Buggy Logs
  • Cleaner Code
  • Gettin' CRUD-y With It
  • Our Diary App
  • Meet Peewee
  • Traversing and Manipulating the DOM with JavaScript
  • Selecting Elements and Adding Events with JavaScript
  • JavaScript and the DOM
  • Working with a Developer
  • Designing our App
  • Wireframing, Interaction Design and Planning
  • ADS Writing and Preparation
  • Introduction to UI Design
  • Dungeon Game
  • Tuples
  • Local Python
  • Character Builder
  • Making Strong Users
  • Deploying to a Device
  • Flask Templates
  • Welcome to Flask
  • Debugging Our App
  • Improving Our User Interface
  • Using a Data Model
  • Views and View Controllers
  • Getting Started with Xcode
  • Swift Value vs Reference Types
  • Swift Properties
  • Swift Inheritance
  • Swift Classes and Objects
  • Swift Structs and their Methods
  • Swift Structs
  • Swift Enums and their Methods
  • Swift Enums
  • Swift Optionals
  • Swift Parameters and Tuples
  • Swift Functions
  • Control Flow
  • Collections
  • Operators
  • Types
  • Variables and Constants
  • Dictionaries
  • Slices
  • Lists Redux
  • Pick a Number! Any Number!
  • Putting the "Fun" Back in "Functions"
  • Shopping List
  • Things That Count
  • Ins & Outs
  • Say Hello to Python
  • Creating the Menu and Footer
  • Getting Started with PHP
  • Forms
  • Tables
  • Objects
  • Links
  • Lists
  • Text
  • Introduction
  • Publishing on Google Play
  • Testing and Debugging
  • Improving Our Code
  • Coding the Fun Facts
  • Basic Android Programming
  • Creating the Initial Screen Layout
  • Getting Started with Android
  • Getting Started with WordPress
  • Reading Data from Databases with SQL
  • Installing MySQL Server and MySQL Workbench
  • Introduction to Data, Databases and SQL
  • Build a Todo List Application with Rails 4
  • Ruby Testing
  • Standard Library
  • Ruby Core
  • Ruby Modules
  • Ruby Procs & Lambdas
  • Ruby Blocks
  • Ruby Loops
  • Ruby Methods
  • Ruby Hashes
  • Ruby Arrays
  • Ruby Numbers
  • Ruby Strings
  • Objects, Classes, and Variables
  • Ruby Basics
  • Installing a Ruby Development Environment
  • Installing Programs
  • Environment and Redirection
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • Workflows
  • Working With Remote Repositories
  • Merging
  • Branches
  • Getting Started With Git
  • Why Version Control Matters
  • JavaScript Objects
  • JavaScript Functions
  • JavaScript Numbers
  • JavaScript Strings
  • Introduction Variables
  • JavaScript Arrays
  • Ruby Methods
  • Ruby Numbers (Ruby Basics)
  • Ruby Strings (Ruby Basics)
  • How Ruby Works
  • Functions
  • Objects and Arrays
  • Control Structures
  • Basics
  • CSS Box Model
  • Text, Fonts, and Lists
  • Values and Units
  • Advanced Selectors
  • Selectors
  • Getting Started with CSS
  • Structuring Tables
  • Table Basics
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Newbie