Woongshik Choi

Woongshik Choi

Member Since September 15, 2013
Open to Work

42,387

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Skills & Experience

  • Spoken Languages

    • English
    • Korean
  • Publications

    • Keynote Like A Pro
    • iStart iBooks Author(Multi-touch)
    • iStart Keynote for iPad
    • PRESENTED
    • Udemy - iStart iBooks Author::Publish your book on iBookstore

510 Achievements

  • Getting the REST You Need
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Error Handling in Swift 2.0
  • Making Strong Users
  • Character Builder
  • Flask Templates
  • Welcome to Flask
  • What a View
  • Say Hello to Django
  • Covering Your Bases
  • Be Assertive!
  • What Is Testing?
  • Gettin' CRUD-y With It
  • Our Diary App
  • Meet Peewee
  • Finding the Data You Want
  • Getting Data from a Database
  • Data, Databases and SQL
  • Python Regular Expressions
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • Timezones
  • Math Quiz App
  • Dates and Times
  • Buggy Logs
  • Cleaner Code
  • Local Python
  • Hack-n-Slash
  • Python Inheritance
  • Python Objects
  • Dungeon Game
  • Tuples
  • Dictionaries
  • Slices
  • Lists Redux
  • Creating Flexible Objects Using Protocols
  • Swift 2.0 Protocols
  • Python Data Types
  • Letter Game App
  • Number Game App
  • Shopping List App
  • Logic in Python
  • Python For Beginners
  • Objects and Optionals
  • Introduction to Optionals
  • Introduction to Enumerations
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Running Apps on a Device
  • Improving Our User Interface
  • Structs as Data Models
  • View Controllers and Views
  • Getting Started with iOS Development
  • Differentiating Between Objects
  • Class Inheritance
  • Classes
  • Complex Data Structures
  • Function Parameters
  • Functions in Swift 2.0
  • Control Flow with Conditional Statements
  • Control Flow With Loops
  • Swift Dictionaries
  • Introduction to Collections
  • Swift Operators
  • Swift Types
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • An Introduction to Swift Programming
  • Implementing the Detail View
  • Custom Table View Cells
  • Next Week's Weather
  • Upgrading Stormy
  • Delegation in iOS
  • Introduction to Delegates
  • Creating Flexible Objects with Protocols
  • Protocols
  • Introduction to Table Views
  • Managing Complexity
  • Refreshing the Data
  • Adding Weather Icons
  • Interacting With Data From the Web
  • Simple Data Structures
  • Closures in iOS
  • Closures and Closure Expressions
  • Functions as First Class Citizens
  • Understanding Core Data
  • JavaScript Objects
  • JavaScript Arrays
  • JavaScript Loops
  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Final Project: Create a Typographic Site
  • Laying Out Type for the Web
  • Basic Web Typography
  • How to Choose and Use Webfonts
  • Introduction to Typography
  • Simple Mobile Interface
  • Exporting Designs
  • Sketch Features
  • Introducing Sketch
  • Archive Templates in WordPress
  • A Template Hierarchy Review
  • Media Templates in WordPress
  • Custom Post Type Templates
  • Page and Post Templates in WordPress
  • Homepage Templates in WordPress
  • Core WordPress Theme Files
  • Creating an SVG
  • Introduction to SVG
  • Working with Media Queries
  • CSS Animation Basics
  • Understanding CSS Transitions and Transforms
  • Understanding Flexbox and Multi-Column Layout
  • Next Steps
  • Financing Our Company
  • Selling Your Product
  • Marketing Your Product
  • Product Market Fit
  • Discovery
  • PHP Inheritance & Interfaces
  • PHP Properties & Methods
  • PHP Objects and Classes
  • PHP Internal Functions
  • PHP Returns & Closures
  • PHP Functions Basics
  • PHP Loops
  • PHP Conditionals
  • PHP Datatypes
  • Spriting with Compass
  • Compass Helper Functions
  • Compass Layout and Typography
  • PHP Data & Structure
  • How WordPress Templates Work
  • Moving from WordPress.com to Self-Hosted WordPress.org
  • Build a Website With Bootstrap
  • Prototyping With Bootstrap
  • WordPress User Roles
  • The WordPress Codex
  • Local WordPress Development
  • Getting Started with Compass
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Advanced Directives
  • Concepts on Advanced Functions
  • Advanced Variables, Mixins, Functions, and Placeholders
  • Getting Started with Advanced Sass
  • Treehouse Club - CSS
  • Modular Media Queries
  • Sass Grid System
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Refactoring Our Code (Swift)
  • Building the Master and Detail Views (Swift)
  • Building a Music Library and Playlists (Swift)
  • Using a Navigation Controller With Segues (Swift)
  • Working With Multiple View Controllers (Swift)
  • Getting Started with CSS
  • SMACSS and Sass
  • Sass and BEM
  • Getting Modular with Mixins and Functions
  • Displaying Our Weather Data
  • Data Modeling With Structures
  • Concurrency
  • Pulling Data From the Web
  • Deploying to a Device
  • 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
  • Ins & Outs
  • Say Hello to Python
  • PHP Getting Started
  • Running an Ecommerce Site Long Term
  • Extending WooCommerce
  • Managing Orders in WooCommerce
  • Managing Products in WooCommerce
  • Setting Up WooCommerce
  • WordPress Plugin Best Practices
  • Widgets and Custom Menus
  • Custom Post Types and Fields
  • Customizing WordPress Themes
  • Content Strategy with WordPress
  • Finding Good WordPress Plugins and Themes
  • Managing Comments on a WordPress Blog
  • Working with Media in WordPress Blogs
  • Posts and Pages in WordPress
  • Blogging with WordPress Overview
  • Getting Started with WordPress
  • MASH JavaScript
  • MASH CSS
  • MASH HTML
  • Treehouse Club - JavaScript
  • Customizing Google Maps
  • Google Maps Integration
  • jQuery Plugins
  • Form Validation and Manipulation
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • Custom Media Players
  • Captioning Video
  • Media Basics
  • Introduction to Ecommerce with WordPress
  • JavaScript Variables
  • Introducing JavaScript
  • Objects, Classes, and Variables
  • Ruby Basics
  • Ruby Methods
  • Ruby Numbers (Ruby Basics)
  • Ruby Strings (Ruby Basics)
  • How Ruby Works
  • Why Version Control Matters
  • Chrome DevTools Basics
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Traversing and Manipulating the DOM with JavaScript
  • Selecting Elements and Adding Events with JavaScript
  • JavaScript and the DOM
  • Introduction to jQuery
  • Writing Online
  • Soft Skills - Psychology
  • Structuring Tables
  • Table Basics
  • Build a Website With Foundation
  • What's New in Foundation 5
  • Prototyping With Foundation
  • Creating a Simple Drawing Application
  • Creating a Password Confirmation Form
  • Creating a Mobile Drop Down Menu
  • Creating a Simple Lightbox
  • Web Apps
  • Choosing Options
  • Organizing Forms
  • Finalizing the Project
  • Case Studies and Examples
  • The Brand Identity Design Process
  • Introduction to Brand Identity
  • Websites
  • Introduction
  • Form Basics
  • Introduction to Front-End Frameworks
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • Productivity
  • WordPress Themes
  • Installing Wordpress
  • Cocoapods
  • Animate This (iOS7)
  • Debugging HTML and CSS Problems
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Sharing a Website
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Advanced Sass Concepts
  • Speeding up Workflow With Sass
  • Variables, Mixins, and Extending Selectors
  • Getting Started with Sass
  • Moving Forward with UX
  • Tools UXers Use
  • How UXers Think
  • What Do User Experience Designers Do?
  • What is User Experience (UX)?
  • Owning a WordPress Site Long Term
  • Working with Media in WordPress
  • Adding and Editing Content
  • WordPress Community Management
  • Getting a WordPress Site
  • WordPress Admin Settings
  • Better SEO Through Tools
  • Better SEO Through Code
  • Better SEO Through Content
  • Introduction to SEO
  • Grid Layout
  • Flexbox Layout
  • Positioning Schemes
  • Float Layout
  • Display Modes
  • Business Plan for Freelance Business
  • Customizing WordPress
  • Adding and Editing Content in WordPress
  • JavaScript Objects
  • JavaScript Functions
  • Beyond the Basics
  • Installing Programs
  • Environment and Redirection
  • Improving Usability
  • Mobile Usability
  • Website Usability
  • Presentation Skills
  • Important Skills For Professional Success
  • What is Usability?
  • Business Plan Basics
  • The Logo Sprint
  • Logo Design 101
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • Working with a Developer
  • Designing our App
  • Wireframing, Interaction Design and Planning
  • ADS Writing and Preparation
  • Introduction to UI Design
  • JavaScript Arrays
  • JavaScript Numbers
  • Simple PHP Application: Wrapping Up The Project
  • Working with PHP Functions
  • Integrating With Paypal
  • Listing Inventory Items
  • Adding a Contact Form
  • Creating the Menu and Footer
  • Getting Started with PHP
  • JavaScript Strings
  • Introduction Variables
  • Functions
  • Objects and Arrays
  • Control Structures
  • Basics
  • Advanced Techniques
  • Responsive Design
  • Adaptive Design
  • Fluid Foundation
  • Introduction to Responsive Web Design
  • Media Queries
  • CSS Animations
  • Transitions and Transforms
  • Flexbox and Multi-Column Layout
  • Managing Comments
  • Configuring WordPress
  • Securing and Maintaining a MySQL Database
  • Gradients
  • Web Typography
  • Going Mobile
  • Designing Email with CSS
  • Coding HTML Email
  • HTML Email Basics
  • Joining Relational Data Between Tables in SQL
  • Manipulating Schema with SQL
  • Backgrounds and Borders
  • Advanced Selectors
  • Reading Data from Databases with SQL
  • CSS Box Model
  • Introduction to Data, Databases and SQL
  • Installing MySQL Server and MySQL Workbench
  • Text, Fonts, and Lists
  • Advanced Objective-C
  • Foundation Framework
  • Introduction to Objective-C
  • Pointers and Memory
  • Functional Programming in C
  • Finishing the User Interface
  • Customizing Table View Controllers
  • Fundamentals of C
  • Using Auto Layout and Managing the Keyboard
  • Testing and Debugging
  • Designing your App
  • Refactoring into a Model
  • Values and Units
  • Selectors
  • Getting Started with CSS
  • Forms
  • Tables
  • Objects
  • Links
  • Creating a Long Term Business
  • Protecting Yourself With Contracts
  • Establishing a Proper Workflow
  • Pricing and Project Proposals
  • Finding Your First Project
  • Starting a Freelance Career
  • Creating Home Page Assets
  • Applying Effects
  • Lists
  • Text
  • How to Draw in Illustrator
  •  Adding Color and Type
  • Creating an Icon
  • Workflow Basics
  • Slices & Save for Web
  • Vector Shapes
  • Type Tools
  • Masks Basics
  • Layer Basics
  • Implementing Custom Login and Sign Up Screens
  • Metrics
  • Sales
  • Pricing
  • Financing Your Company
  • From Idea to Execution
  • Workspace Basics
  • Creating a Data Collection
  • Professional Development
  • Applying & Interviewing
  • The Job Search
  • Networking
  • Understanding Views and View Controllers
  • Getting Started (iOS7)
  • Introduction
  • Personal Branding
  • Setting Your Course
  • Careers in the Tech Industry
  • Self-Assessment
  • Website Basics
  • Getting Started with WordPress
  • Design Foundations Final
  • Becoming a Problem Solver
  • Understanding Aesthetics
  • Introduction to Design
  • Launching the Website
  • Styling Content
  • Introduction to Accounting
  • Marketing Strategy
  • Forming Your Company
  • Protecting and Sharing Your Work
  • Marketing Basics
  • Creating a Website Structure
  • Making Money
  • Text Editors and HTML
  • Website Basics
  • Licensing
  • Fair Use and Public Domain
  • Getting Started with Copyright
  • Getting Work Done
  • A Lifestyle Choice
  • Growing Your Business
  • Client Services
  • Sales and Pitching
  • Marketing and Promotion
  • Video Marketing
  • Email Marketing
  • Search Engine Optimization
  • Usability Testing
  • Usability Basics
  • Social Media
  • Moving Beyond the Blog
  • Finding Business
  • Creating Content
  • Introduction to Blogging
  • Introduction to Illustrator
  • DNS Basics
  • Graphic Basics
  • Retrieving and Viewing Data from Parse.com
  • Capturing Photo and Video Using UIImagePickerController
  • Relating Users in Parse.com
  • Color Theory
  • Principles
  • Elements
  • Location
  • API Access
  • Blocks and Categories
  • App Settings
  • Appearance
  • Notifications
  • iOS 5 Core Data
  • Using Parse.com as a Backend and Adding Users
  • Corporate Structure
  • Designing and Starting the App
  • Web View
  • Why Start a Business?
  • Storyboards
  • Viewing a Web Page
  • Adapting Data for Display
  • Data Modeling
  • Getting Data from the Web
  • Rebuilding from Scratch
  • Exploring the Master-Detail Template
  • Automatic Reference Counting
  • Making It Pretty
  • Share Your Creation
  • Animate This
  • Shaking Things Up
  • Learning the Language
  • Getting Started with iPhone
  • Newbie