Yiheng Chu

Yiheng Chu

Member Since October 18, 2014
Open to Work

8,465

Total Points

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Learn more about when and how points are earned.

Skills & Experience

  • Spoken Languages

    • Mandarin, English

94 Achievements

  • Achievement

    Console Users and Permission

    Console Foundations

    Achieved

    Aug 23, 2017

    Console Users and Permission
  • Achievement

    Bells and Whistles

    Intro to Java Web Development with Spark

    Achieved

    Jun 26, 2017

    Bells and Whistles
  • Achievement

    Diving into Web Development

    Intro to Java Web Development with Spark

    Achieved

    Jun 25, 2017

    Diving into Web Development
  • Achievement

    GET and POST Requests in a Browser

    HTTP Basics

    Achieved

    Jun 23, 2017

    GET and POST Requests in a Browser
  • Achievement

    Introduction to HTTP

    HTTP Basics

    Achieved

    Jun 23, 2017

    Introduction to HTTP
  • Achievement

    What to Test

    Unit Testing in Java

    Achieved

    Jun 22, 2017

    What to Test
  • Achievement

    How To Test

    Unit Testing in Java

    Achieved

    Jun 22, 2017

    How To Test
  • Achievement

    Why Test

    Unit Testing in Java

    Achieved

    May 18, 2017

    Why Test
  • Achievement

    Perform

    C# Basics (Retired)

    Achieved

    May 18, 2017

    Perform
  • Achievement

    Console I/O

    C# Basics (Retired)

    Achieved

    May 18, 2017

    Console I/O
  • Achievement

    Prepare and Plan

    C# Basics (Retired)

    Achieved

    May 17, 2017

    Prepare and Plan
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Apr 17, 2017

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Apr 17, 2017

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Apr 16, 2017

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Apr 16, 2017

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Apr 16, 2017

    Introducing JavaScript
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Apr 15, 2017

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Apr 15, 2017

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Apr 15, 2017

    Form Basics
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 15, 2017

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 15, 2017

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 15, 2017

    HTML: The Structural Foundation of Web Pages and Applications
  • Achievement

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 14, 2017

    Getting Familiar with HTML and CSS
  • Achievement

    Ruby Methods

    Ruby Basics (Retired)

    Achieved

    Apr 10, 2017

    Ruby Methods
  • Achievement

    Ruby Numbers (Ruby Basics)

    Ruby Basics (Retired)

    Achieved

    Apr 10, 2017

    Ruby Numbers (Ruby Basics)
  • Achievement

    Ruby Strings (Ruby Basics)

    Ruby Basics (Retired)

    Achieved

    Apr 9, 2017

    Ruby Strings (Ruby Basics)
  • Achievement

    How Ruby Works

    Ruby Basics (Retired)

    Achieved

    Apr 9, 2017

    How Ruby Works
  • Achievement

    A Route to a Delete Action

    Rails Routes and Resources

    Achieved

    Apr 9, 2017

    A Route to a Delete Action
  • Achievement

    Routes to Update Actions

    Rails Routes and Resources

    Achieved

    Apr 9, 2017

    Routes to Update Actions
  • Achievement

    Routes for Create Actions

    Rails Routes and Resources

    Achieved

    Apr 9, 2017

    Routes for Create Actions
  • Achievement

    A Route to a Read Action

    Rails Routes and Resources

    Achieved

    Apr 9, 2017

    A Route to a Read Action
  • Achievement

    Rails Resource Index

    Rails Routes and Resources

    Achieved

    Apr 9, 2017

    Rails Resource Index
  • Achievement

    Adding a Model Attribute

    Ruby on Rails 5 Basics

    Achieved

    Apr 9, 2017

    Adding a Model Attribute
  • Achievement

    Using the Rails Console

    Ruby on Rails 5 Basics

    Achieved

    Apr 5, 2017

    Using the Rails Console
  • Achievement

    Handling Rails Requests

    Ruby on Rails 5 Basics

    Achieved

    Apr 5, 2017

    Handling Rails Requests
  • Achievement

    Creating Rails Apps

    Ruby on Rails 5 Basics

    Achieved

    Apr 5, 2017

    Creating Rails Apps
  • Achievement

    Subqueries

    Querying Relational Databases

    Achieved

    Jan 15, 2017

    Subqueries
  • Achievement

    Set Operations

    Querying Relational Databases

    Achieved

    Jan 14, 2017

    Set Operations
  • Achievement

    Joining Table Data with SQL

    Querying Relational Databases

    Achieved

    Jan 14, 2017

    Joining Table Data with SQL
  • Achievement

    Table Relationships

    Querying Relational Databases

    Achieved

    Jan 14, 2017

    Table Relationships
  • Achievement

    Database Keys

    Querying Relational Databases

    Achieved

    Jan 14, 2017

    Database Keys
  • Achievement

    Database Normalization

    Querying Relational Databases

    Achieved

    Jan 14, 2017

    Database Normalization
  • Achievement

    Handling Errors When Manipulating Data

    Modifying Data with SQL

    Achieved

    Jan 13, 2017

    Handling Errors When Manipulating Data
  • Achievement

    Deleting Data from a Database

    Modifying Data with SQL

    Achieved

    Jan 13, 2017

    Deleting Data from a Database
  • Achievement

    Updating Data in a Database

    Modifying Data with SQL

    Achieved

    Jan 13, 2017

    Updating Data in a Database
  • Achievement

    Adding Data to a Database

    Modifying Data with SQL

    Achieved

    Jan 13, 2017

    Adding Data to a Database
  • Achievement

    Date and Time Functions

    Reporting with SQL

    Achieved

    Jan 13, 2017

    Date and Time Functions
  • Achievement

    Aggregate and Numeric Functions

    Reporting with SQL

    Achieved

    Jan 13, 2017

    Aggregate and Numeric Functions
  • Achievement

    Working with Text

    Reporting with SQL

    Achieved

    Jan 11, 2017

    Working with Text
  • Achievement

    Ordering, Limiting and Paging Results

    Reporting with SQL

    Achieved

    Jan 11, 2017

    Ordering, Limiting and Paging Results
  • Achievement

    Finding the Data You Want

    SQL Basics

    Achieved

    Jan 11, 2017

    Finding the Data You Want
  • Achievement

    Getting Data from a Database

    SQL Basics

    Achieved

    Jan 11, 2017

    Getting Data from a Database
  • Achievement

    Data, Databases and SQL

    SQL Basics

    Achieved

    Jan 10, 2017

    Data, Databases and SQL
  • Achievement

    Threads in Android

    Threads and Services

    Achieved

    Oct 17, 2016

    Threads in Android
  • Achievement

    For All Intents and Purposes

    Intents and Broadcast Receivers

    Achieved

    Oct 7, 2016

    For All Intents and Purposes
  • Achievement

    Introduction to Data Persistence

    Android Data Persistence

    Achieved

    Oct 1, 2016

    Introduction to Data Persistence
  • Achievement

    Tablet Time

    Android Fragments

    Achieved

    Sep 26, 2016

    Tablet Time
  • Achievement

    Ingredients and Directions

    Android Fragments

    Achieved

    Sep 26, 2016

    Ingredients and Directions
  • Achievement

    Managing Fragments

    Android Fragments

    Achieved

    Sep 25, 2016

    Managing Fragments
  • Achievement

    Introducing Fragments

    Android Fragments

    Achieved

    Sep 24, 2016

    Introducing Fragments
  • Achievement

    The Project

    Android Activity Lifecycle

    Achieved

    Sep 22, 2016

    The Project
  • Achievement

    Introducing SharedPreferences

    Android Activity Lifecycle

    Achieved

    Sep 22, 2016

    Introducing SharedPreferences
  • Achievement

    The Activity Lifecycle

    Android Activity Lifecycle

    Achieved

    Sep 21, 2016

    The Activity Lifecycle
  • Achievement

    Acting on List Item Taps

    Android Lists and Adapters (2015)

    Achieved

    Sep 20, 2016

    Acting on List Item Taps
  • Achievement

    Lists with RecyclerViews

    Android Lists and Adapters (2015)

    Achieved

    Sep 19, 2016

    Lists with RecyclerViews
  • Achievement

    Using Parcelable Data

    Android Lists and Adapters (2015)

    Achieved

    Sep 18, 2016

    Using Parcelable Data
  • Achievement

    Custom ListViews

    Android Lists and Adapters (2015)

    Achieved

    Sep 18, 2016

    Custom ListViews
  • Achievement

    Standard ListViews

    Android Lists and Adapters (2015)

    Achieved

    Sep 17, 2016

    Standard ListViews
  • Achievement

    Updating the Data Model

    Android Lists and Adapters (2015)

    Achieved

    Sep 16, 2016

    Updating the Data Model
  • Achievement

    Getting There

    Java Data Structures

    Achieved

    Sep 9, 2016

    Getting There
  • Achievement

    Hooking up the Model to the View

    Build a Weather App (2015)

    Achieved

    Apr 9, 2016

    Hooking up the Model to the View
  • Achievement

    Building the Weather UI

    Build a Weather App (2015)

    Achieved

    Apr 8, 2016

    Building the Weather UI
  • Achievement

    Working with JSON

    Build a Weather App (2015)

    Achieved

    Apr 8, 2016

    Working with JSON
  • Achievement

    Concurrency and Error Handling

    Build a Weather App (2015)

    Achieved

    Apr 8, 2016

    Concurrency and Error Handling
  • Achievement

    Networking

    Build a Weather App (2015)

    Achieved

    Apr 7, 2016

    Networking
  • Achievement

    Exploring an API

    Build a Weather App (2015)

    Achieved

    Apr 7, 2016

    Exploring an API
  • Achievement

    Finishing the User Interface

    Build an Interactive Story App (Retired)

    Achieved

    Apr 6, 2016

    Finishing the User Interface
  • Achievement

    The Model-View-Controller Pattern

    Build an Interactive Story App (Retired)

    Achieved

    Apr 6, 2016

    The Model-View-Controller Pattern
  • Achievement

    Intents and Multiple Activities

    Build an Interactive Story App (Retired)

    Achieved

    Apr 6, 2016

    Intents and Multiple Activities
  • Achievement

    User Input

    Build an Interactive Story App (Retired)

    Achieved

    Apr 5, 2016

    User Input
  • Achievement

    Testing and Debugging

    Build a Simple Android App

    Achieved

    Apr 5, 2016

    Testing and Debugging
  • Achievement

    Improving Our Code

    Build a Simple Android App

    Achieved

    Apr 5, 2016

    Improving Our Code
  • Achievement

    Basic Android Programming

    Build a Simple Android App

    Achieved

    Apr 5, 2016

    Basic Android Programming
  • Achievement

    Creating the Screen Layout

    Build a Simple Android App

    Achieved

    Apr 5, 2016

    Creating the Screen Layout
  • Achievement

    Getting Started with Android

    Build a Simple Android App

    Achieved

    Apr 5, 2016

    Getting Started with Android
  • Achievement

    Slices

    Python Collections (Retired)

    Achieved

    Oct 20, 2014

    Slices
  • Achievement

    Lists Redux

    Python Collections (Retired)

    Achieved

    Oct 20, 2014

    Lists Redux
  • Achievement

    Pick a Number! Any Number!

    Python Basics (Retired)

    Achieved

    Oct 19, 2014

    Pick a Number! Any Number!
  • Achievement

    Putting the "Fun" Back in "Functions"

    Python Basics (Retired)

    Achieved

    Oct 19, 2014

    Putting the "Fun" Back in "Functions"
  • Achievement

    Ins & Outs

    Python Basics (Retired)

    Achieved

    Oct 19, 2014

    Ins & Outs
  • Achievement

    Shopping List

    Python Basics (Retired)

    Achieved

    Oct 19, 2014

    Shopping List
  • Achievement

    Things That Count

    Python Basics (Retired)

    Achieved

    Oct 18, 2014

    Things That Count
  • Achievement

    Say Hello to Python

    Python Basics (Retired)

    Achieved

    Oct 18, 2014

    Say Hello to Python
  • Achievement

    Newbie

    Achieved

    Oct 18, 2014

    Newbie