Hai Huang

Hai Huang

Shanghai, China
Open to Work

12,675

Total Points

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Learn more about when and how points are earned.

Skills & Experience

  • Spoken Languages

    • Chinese
    • English
    • Japanese
    • Korean

144 Achievements

  • Complex Data Structures
  • Building a Flashcard App
  • Sweeping Vues: Loops, Methods, Directives
  • What a Beautiful Vue!
  • Introducing Vue
  • Reformatting User Input
  • Validating a Form with Regular Expressions
  • Regular Expressions
  • Perform
  • Console I/O
  • Prepare and Plan
  • Stateful Components
  • Thinking in Components
  • Getting Started With Spreadsheets
  • Updating and Uninstalling Packages with npm
  • First Steps in React
  • Introducing Spreadsheets
  • Installing Packages with npm
  • What is npm?
  • HTTP Methods and Headers
  • Creating a Basic Template Engine in Node.js
  • Handling Routes in Node.js
  • Creating a Simple Server in Node.js
  • Creating a Command Line Weather Application
  • Handling Errors in Node
  • Introduction to HTTP
  • Getting Data From an API With Node
  • Introduction to Node.js
  • Classes
  • Objects and New Collection Types
  • The Cooler Parts of ES2015
  • ES2015 Basics
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • Finishing the Game
  • Getters and Setters
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Chrome DevTools Basics
  • Testing for Accessibility
  • Mobile Accessibility
  • Accessible UI Patterns
  • Semantic HTML and WAI-ARIA
  • WCAG 2.0 (and Other Standards)
  • Access for Everybody
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introducing JavaScript
  • Introduction to Methods
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Captioning Video
  • Media Basics
  • MASH JavaScript
  • MASH CSS
  • Structuring Tables
  • Table Basics
  • Combine and Minify Assets
  • Optimize Assets
  • Harnessing the Power of Objects
  • Measuring Performance
  • Planning for Performance
  • Building Forms With Bootstrap
  • Meet Objects
  • Using Bootstrap Components
  • Perfecting the Prototype
  • Using your New Tools
  • Responsive Layouts With the Bootstrap Grid
  • Getting Started with Java
  • Getting to Know Bootstrap 4
  • Working with jQuery Collections (2017)
  • Understanding jQuery Events and DOM Traversal (2017)
  • Introducing jQuery (2017)
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • MASH HTML
  • Selectors - Beyond the Basics
  • Treehouse Club - JavaScript
  • Treehouse Club - CSS
  • Traversing the DOM
  • Responding to User Interaction
  • Welcome to the Treehouse Club
  • Making Changes to the DOM
  • Getting a Handle on the DOM
  • WWW
  • The Browser Environment
  • JavaScript Objects
  • JavaScript Arrays
  • The Internet
  • JavaScript Loops
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • Introducing JavaScript
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Going Further with HTML
  • Images, Text and Links
  • Structuring Your Content
  • Getting Started With HTML
  • Adding a New Web Page
  • Make It Beautiful with CSS
  • HTML: The Structural Foundation of Web Pages and Applications
  • Getting Familiar with HTML and CSS
  • Adding Power to Functions
  • Functions in Swift
  • Control Flow With Conditional Statements
  • Control Flow With Loops
  • Dictionaries in Swift
  • Introduction to Collections
  • Swift Operators
  • Swift Types
  • An Introduction to Swift Programming
  • Computer Languages
  • Computer Basics
  • Newbie