yangchun li

yangchun li

Member Since March 11, 2018
Open to Work

14,456

Total Points

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

Skills & Experience

185 Achievements

  • Exploring Async/Await
  • Understanding Promises
  • Asynchronous JavaScript with Callbacks
  • What is Asynchronous Programming?
  • Programming AJAX
  • AJAX Concepts
  • Introducing the Authentication Project
  • Refining the App
  • Building the Application
  • Setting up with Create React App
  • Going Further with Routing
  • Navigating, Nesting and Redirecting Routes
  • Getting Started with React Router
  • Putting it all Together
  • Actions, Dispatch and Reducers. Oh my!
  • Modularizing the React Scoreboard Application
  • Getting Started with Redux
  • React Component Patterns
  • Stateful Components and Lifecycle Methods
  • Combining Array Methods
  • Array Manipulation
  • Practice forEach
  • Array Iteration
  • Callbacks and the DOM
  • Callbacks with Timers
  • Introduction to Callback Functions
  • Managing State and Data Flow
  • Build Modular Interfaces with Components
  • Stateful Components
  • Introducing Props
  • Thinking in Components
  • First Steps in React
  • Getting the REST You Need 2
  • Rendering the Game
  • Practicing Getters and Setters
  •  Building Constructor Methods and Generating Objects
  • Introducing 'Four in a Row'
  • Building a Flashcard App
  • Express Middleware
  • Sessions and Cookies
  • User Registration and Login
  • What is Authentication?
  • Go Further With Mongo
  • Serving Static Files in Express
  • Applying Express Knowledge
  • Middleware
  • Deeper into Routing with Express
  • Using Templates with Express
  • Getting Started with Express
  • Working With Collections
  • Understanding MongoDB
  • Getting Started with MongoDB
  • HTTP Methods and Headers
  • Creating a Basic Template Engine in Node.js
  • Handling Routes in Node.js
  • Creating a Simple Server in Node.js
  • Branches on Git Hosting Services
  • Remote Branches
  • Merging
  • Branches
  • Improve Your Workflow with Sass
  • Getting Started with Sass
  •  Working on a Team
  • Working By Yourself
  • Improving your Gulp Workflow
  • Compile Sass with Gulp
  • Gulp your JavaScript workflow!
  • Welcome to Gulp.js
  • Creating a Command Line Weather Application
  • Handling Errors in Node
  • Getting Data From an API With Node
  • Introduction to Node.js
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Optimize Assets
  • Measuring Performance
  • Planning for Performance
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Building Forms With Bootstrap
  • Using Bootstrap Components
  • Working with jQuery Collections (2017)
  • Understanding jQuery Events and DOM Traversal (2017)
  • Introducing jQuery (2017)
  • The Rough Plan
  • Getters and Setters
  • Practicing Classes
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Traversing the DOM
  • Responding to User Interaction
  • Sweeping Vues: Loops, Methods, Directives
  • Making Changes to the DOM
  • What a Beautiful Vue!
  • Introducing Vue
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • JavaScript Tools and Workflows
  • JavaScript is Everywhere
  • Finishing the Game
  • Introducing JavaScript
  • Hello, GitHub!
  • WordPress Plugins
  • WordPress Themes
  • The WordPress Customizer
  • Managing Media in WordPress
  • Managing Content in WordPress
  • GitHub and Other Remote Repositories
  • Managing Committed Files
  • First Commits
  • Installing Programs
  • Environment and Redirection
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Installing WordPress Locally
  • What Is WordPress?
  • Structuring Tables
  • Table Basics
  • Responsive Layouts With the Bootstrap Grid
  • Getting to Know Bootstrap 4
  • Art Direction with the Picture Element
  • Image Delivery with Srcset and Sizes
  • 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
  • Using Slack Effectively
  • Introducing Slack for the Techdegree
  • Getting a Handle on the DOM
  • The Browser Environment
  • JavaScript Objects
  • JavaScript Arrays
  • 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
  • Newbie