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Heng Liu

Member Since April 25, 2015

16,220

Total Points

•
2,489

JavaScript

2489 pts
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0 pts
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•
2,463

Python

2463 pts
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0 pts
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•
1,782

Development Tools

1782 pts
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0 pts
Forum
•
1,597

Design

1597 pts
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0 pts
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•
1,568

CSS

1567 pts
Achievements

1 pts
Forum
•
1,390

HTML

1390 pts
Achievements

0 pts
Forum
•
1,196

Android

1196 pts
Achievements

0 pts
Forum
•
716

PHP

716 pts
Achievements

0 pts
Forum
•
485

Java

485 pts
Achievements

0 pts
Forum
•
364

Ruby

364 pts
Achievements

0 pts
Forum
•
51

Business

51 pts
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0 pts
Forum

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196 Achievements

Achievement
Introduction to Video Games

How to Make a Video Game

Achieved
Sep 21, 2015
Achievement
Concurrency and Error Handling

Build a Weather App (2015)

Achieved
Sep 6, 2015
Achievement
Networking

Build a Weather App (2015)

Achieved
Sep 3, 2015
Achievement
Exploring an API

Build a Weather App (2015)

Achieved
Sep 2, 2015
Achievement
PHP Inheritance & Interfaces

Object-Oriented PHP Basics (Retired)

Achieved
Jul 16, 2015
Achievement
PHP Properties & Methods

Object-Oriented PHP Basics (Retired)

Achieved
Jul 16, 2015
Achievement
PHP Objects and Classes

Object-Oriented PHP Basics (Retired)

Achieved
Jul 16, 2015
Achievement
PHP Internal Functions

PHP Functions

Achieved
Jul 15, 2015
Achievement
PHP Returns & Closures

PHP Functions

Achieved
Jul 15, 2015
Achievement
PHP Functions Basics

PHP Functions

Achieved
Jul 15, 2015
Achievement
PHP Loops

PHP Basics (Retired)

Achieved
Jul 15, 2015
Achievement
PHP Conditionals

PHP Basics (Retired)

Achieved
Jul 14, 2015
Achievement
PHP Datatypes

PHP Basics (Retired)

Achieved
Jul 13, 2015
Achievement
Introduction to Node.js

Node.js Basics (2014)

Achieved
Jul 1, 2015
Achievement
Harnessing the Power of Objects

Java Objects (Retired)

Achieved
Jun 26, 2015
Achievement
Securing and Maintaining a MySQL Database

Database Foundations

Achieved
Jun 1, 2015
Achievement
SQL Calculating, Aggregating and Other Functions

Database Foundations

Achieved
Jun 1, 2015
Achievement
Joining Relational Data Between Tables in SQL

Database Foundations

Achieved
Jun 1, 2015
Achievement
Manipulating Schema with SQL

Database Foundations

Achieved
Jun 1, 2015
Achievement
Creating Tables and Manipulating Data with SQL

Database Foundations

Achieved
May 31, 2015
Achievement
Reading Data from Databases with SQL

Database Foundations

Achieved
May 31, 2015
Achievement
Installing MySQL Server and MySQL Workbench

Database Foundations

Achieved
May 31, 2015
Achievement
Introduction to Data, Databases and SQL

Database Foundations

Achieved
May 31, 2015
Achievement
PHP Data & Structure

PHP Basics (Retired)

Achieved
May 31, 2015
Achievement
PHP Getting Started

PHP Basics (Retired)

Achieved
May 30, 2015
Achievement
Meet Objects

Java Objects (Retired)

Achieved
May 30, 2015
Achievement
Perfecting the Prototype

Java Basics

Achieved
May 30, 2015
Achievement
Introduction to SEO

SEO Basics

Achieved
May 29, 2015
Achievement
Moving Forward with UX

UX Basics

Achieved
May 28, 2015
Achievement
Tools UXers Use

UX Basics

Achieved
May 28, 2015
Achievement
How UXers Think

UX Basics

Achieved
May 28, 2015
Achievement
What Do User Experience Designers Do?

UX Basics

Achieved
May 28, 2015
Achievement
What is User Experience (UX)?

UX Basics

Achieved
May 28, 2015
Achievement
Grid Layout

CSS Layout Techniques

Achieved
May 28, 2015
Achievement
Flexbox Layout

CSS Layout Techniques

Achieved
May 28, 2015
Achievement
Positioning Schemes

CSS Layout Techniques

Achieved
May 28, 2015
Achievement
Float Layout

CSS Layout Techniques

Achieved
May 28, 2015
Achievement
Display Modes

CSS Layout Techniques

Achieved
May 28, 2015
Achievement
Layer Basics

Photoshop Foundations

Achieved
May 27, 2015
Achievement
Workspace Basics

Photoshop Foundations

Achieved
May 27, 2015
Achievement
AngularJS MVC Frameworks

AngularJS

Achieved
May 27, 2015
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
May 27, 2015
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
May 27, 2015
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
May 27, 2015
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
May 27, 2015
Achievement
Workflows

Git Basics

Achieved
May 27, 2015
Achievement
Working With Remote Repositories

Git Basics

Achieved
May 27, 2015
Achievement
Merging

Git Basics

Achieved
May 27, 2015
Achievement
Branches

Git Basics

Achieved
May 27, 2015
Achievement
Getting Started With Git

Git Basics

Achieved
May 27, 2015
Achievement
Why Version Control Matters

Git Basics

Achieved
May 27, 2015
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
May 26, 2015
Achievement
Web Apps

Accessibility

Achieved
May 26, 2015
Achievement
Websites

Accessibility

Achieved
May 26, 2015
Achievement
Introduction

Accessibility

Achieved
May 26, 2015
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
May 25, 2015
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
May 25, 2015
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
May 25, 2015
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
May 25, 2015
Achievement
Responsive Patterns

Responsive Layouts

Achieved
May 24, 2015
Achievement
Media Queries

Responsive Layouts

Achieved
May 24, 2015
Achievement
Responsive Theory

Responsive Layouts

Achieved
May 24, 2015
Achievement
Advanced Selectors

CSS Selectors

Achieved
May 24, 2015
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
May 24, 2015
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
May 24, 2015
Achievement
Finalizing the Project

Brand Identity Basics

Achieved
May 24, 2015
Achievement
Case Studies and Examples

Brand Identity Basics

Achieved
May 24, 2015
Achievement
The Brand Identity Design Process

Brand Identity Basics

Achieved
May 24, 2015
Achievement
Introduction to Brand Identity

Brand Identity Basics

Achieved
May 24, 2015
Achievement
Creating Home Page Assets

Illustrator Foundations

Achieved
May 24, 2015
Achievement
Custom Media Players

HTML Video and Audio (Retired)

Achieved
May 22, 2015
Achievement
Captioning Video

HTML Video and Audio (Retired)

Achieved
May 22, 2015
Achievement
Media Basics

HTML Video and Audio (Retired)

Achieved
May 22, 2015
Achievement
Installing Programs

Console Foundations

Achieved
May 21, 2015
Achievement
Environment and Redirection

Console Foundations

Achieved
May 21, 2015
Achievement
Console Processes

Console Foundations

Achieved
May 21, 2015
Achievement
Console Users and Permission

Console Foundations

Achieved
May 20, 2015
Achievement
Moving Around in the Console

Console Foundations

Achieved
May 20, 2015
Achievement
Ruby Methods

Ruby Basics (Retired)

Achieved
May 20, 2015
Achievement
Ruby Numbers (Ruby Basics)

Ruby Basics (Retired)

Achieved
May 20, 2015
Achievement
Ruby Strings (Ruby Basics)

Ruby Basics (Retired)

Achieved
May 20, 2015
Achievement
How Ruby Works

Ruby Basics (Retired)

Achieved
May 20, 2015
Achievement
Traversing and Manipulating the DOM with JavaScript

Interactive Web Pages with JavaScript

Achieved
May 20, 2015
Achievement
Selecting Elements and Adding Events with JavaScript

Interactive Web Pages with JavaScript

Achieved
May 19, 2015
Achievement
JavaScript and the DOM

Interactive Web Pages with JavaScript

Achieved
May 19, 2015
Achievement
Viewing a Web Page

Build a Blog Reader iPhone App

Achieved
May 18, 2015
Achievement
Adapting Data for Display

Build a Blog Reader iPhone App

Achieved
May 18, 2015
Achievement
Data Modeling

Build a Blog Reader iPhone App

Achieved
May 18, 2015
Achievement
Getting Data from the Web

Build a Blog Reader iPhone App

Achieved
May 17, 2015
Achievement
Rebuilding from Scratch

Build a Blog Reader iPhone App

Achieved
May 17, 2015
Achievement
Exploring the Master-Detail Template

Build a Blog Reader iPhone App

Achieved
May 17, 2015
Achievement
Refactoring Our Code (objc)

Build a Playlist Browser with Objective-C

Achieved
May 17, 2015
Achievement
Building the Master and Detail Views (objC)

Build a Playlist Browser with Objective-C

Achieved
May 17, 2015
Achievement
Managing Playlist Data (objC)

Build a Playlist Browser with Objective-C

Achieved
May 17, 2015
Achievement
Building a Music Library Model (objc)

Build a Playlist Browser with Objective-C

Achieved
May 17, 2015
Achievement
Working With Multiple View Controllers (ObjC)

Build a Playlist Browser with Objective-C

Achieved
May 16, 2015
Achievement
Deploying to a Device (ObjC)

Build a Simple iPhone App with Objective-C

Achieved
May 16, 2015
Achievement
Debugging Our App (ObjC)

Build a Simple iPhone App with Objective-C

Achieved
May 16, 2015
Achievement
Improving Our User Interface (ObjC)

Build a Simple iPhone App with Objective-C

Achieved
May 16, 2015
Achievement
Covering Your Bases

Python Testing

Achieved
May 14, 2015
Achievement
Be Assertive!

Python Testing

Achieved
May 14, 2015
Achievement
What Is Testing?

Python Testing

Achieved
May 14, 2015
Achievement
Gettin' CRUD-y With It

Using Databases in Python

Achieved
May 14, 2015
Achievement
Our Diary App

Using Databases in Python

Achieved
May 14, 2015
Achievement
Meet Peewee

Using Databases in Python

Achieved
May 14, 2015
Achievement
Python Regular Expressions

Regular Expressions in Python

Achieved
May 14, 2015
Achievement
Timezones

Dates and Times in Python (2014)

Achieved
May 13, 2015
Achievement
Math Quiz App

Dates and Times in Python (2014)

Achieved
May 13, 2015
Achievement
Dates and Times

Dates and Times in Python (2014)

Achieved
May 13, 2015
Achievement
Buggy Logs

Write Better Python

Achieved
May 13, 2015
Achievement
Cleaner Code

Write Better Python

Achieved
May 13, 2015
Achievement
Local Python

Setting Up a Local Python Environment

Achieved
May 13, 2015
Achievement
Hack-n-Slash

Object-Oriented Python (retired)

Achieved
May 13, 2015
Achievement
Python Inheritance

Object-Oriented Python (retired)

Achieved
May 13, 2015
Achievement
Python Objects

Object-Oriented Python (retired)

Achieved
May 13, 2015
Achievement
Dungeon Game

Python Collections (Retired)

Achieved
May 13, 2015
Achievement
Tuples

Python Collections (Retired)

Achieved
May 12, 2015
Achievement
Dictionaries

Python Collections (Retired)

Achieved
May 12, 2015
Achievement
Slices

Python Collections (Retired)

Achieved
May 12, 2015
Achievement
Lists Redux

Python Collections (Retired)

Achieved
May 12, 2015
Achievement
Pick a Number! Any Number!

Python Basics (Retired)

Achieved
May 12, 2015
Achievement
Putting the "Fun" Back in "Functions"

Python Basics (Retired)

Achieved
May 12, 2015
Achievement
Shopping List

Python Basics (Retired)

Achieved
May 12, 2015
Achievement
Things That Count

Python Basics (Retired)

Achieved
May 12, 2015
Achievement
Ins & Outs

Python Basics (Retired)

Achieved
May 12, 2015
Achievement
Say Hello to Python

Python Basics (Retired)

Achieved
May 12, 2015
Achievement
The Logo Sprint

Logo Design Basics

Achieved
May 11, 2015
Achievement
Logo Design 101

Logo Design Basics

Achieved
May 11, 2015
Achievement
Design Foundations Final

Design Foundations

Achieved
May 11, 2015
Achievement
Becoming a Problem Solver

Design Foundations

Achieved
May 11, 2015
Achievement
Understanding Aesthetics

Design Foundations

Achieved
May 11, 2015
Achievement
Introduction to Design

Design Foundations

Achieved
May 11, 2015
Achievement
Applying Effects

Illustrator Foundations

Achieved
May 11, 2015
Achievement
Creating a Simple Drawing Application

jQuery Basics (2014)

Achieved
May 11, 2015
Achievement
Creating a Password Confirmation Form

jQuery Basics (2014)

Achieved
May 11, 2015
Achievement
Creating a Mobile Drop Down Menu

jQuery Basics (2014)

Achieved
May 10, 2015
Achievement
Creating a Simple Lightbox

jQuery Basics (2014)

Achieved
May 10, 2015
Achievement
Creating a Spoiler Revealer

jQuery Basics (2014)

Achieved
May 10, 2015
Achievement
Introduction to jQuery

jQuery Basics (2014)

Achieved
May 10, 2015
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
May 10, 2015
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
May 9, 2015
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
May 9, 2015
Achievement
How to Draw in Illustrator

Illustrator Foundations

Achieved
May 9, 2015
Achievement
Using your New Tools

Java Basics

Achieved
May 8, 2015
Achievement
Structuring Tables

HTML Tables

Achieved
May 8, 2015
Achievement
Table Basics

HTML Tables

Achieved
May 8, 2015
Achievement
Choosing Options

HTML Forms

Achieved
May 8, 2015
Achievement
Organizing Forms

HTML Forms

Achieved
May 8, 2015
Achievement
Form Basics

HTML Forms

Achieved
May 8, 2015
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
May 8, 2015
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
May 8, 2015
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
May 8, 2015
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
May 7, 2015
Achievement
Adding Color and Type

Illustrator Foundations

Achieved
May 7, 2015
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
May 7, 2015
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
May 7, 2015
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
May 7, 2015
Achievement
Basic Layout

CSS Basics (2014)

Achieved
May 6, 2015
Achievement
The Box Model

CSS Basics (2014)

Achieved
May 6, 2015
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
May 6, 2015
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
May 6, 2015
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
May 5, 2015
Achievement
Creating an Icon

Illustrator Foundations

Achieved
May 5, 2015
Achievement
Introduction to Illustrator

Illustrator Foundations

Achieved
May 4, 2015
Achievement
Finishing the User Interface

Build an Interactive Story App (Retired)

Achieved
May 3, 2015
Achievement
Creating a Data Model (ObjC)

Build a Simple iPhone App with Objective-C

Achieved
May 3, 2015
Achievement
Views and View Controllers (ObjC)

Build a Simple iPhone App with Objective-C

Achieved
May 3, 2015
Achievement
Getting Started with Xcode (ObjC)

Build a Simple iPhone App with Objective-C

Achieved
May 3, 2015
Achievement
Beyond the Basics

Objective-C Basics (Retired)

Achieved
May 3, 2015
Achievement
Advanced Objective-C

Objective-C Basics (Retired)

Achieved
May 3, 2015
Achievement
Foundation Framework

Objective-C Basics (Retired)

Achieved
May 2, 2015
Achievement
Introduction to Objective-C

Objective-C Basics (Retired)

Achieved
May 2, 2015
Achievement
Pointers and Memory

Objective-C Basics (Retired)

Achieved
May 2, 2015
Achievement
Functional Programming in C

Objective-C Basics (Retired)

Achieved
May 2, 2015
Achievement
Fundamentals of C

Objective-C Basics (Retired)

Achieved
May 2, 2015
Achievement
The Model-View-Controller Pattern

Build an Interactive Story App (Retired)

Achieved
Apr 30, 2015
Achievement
Intents and Multiple Activities

Build an Interactive Story App (Retired)

Achieved
Apr 30, 2015
Achievement
User Input

Build an Interactive Story App (Retired)

Achieved
Apr 30, 2015
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Apr 29, 2015
Achievement
Sharing a Website

How to Make a Website

Achieved
Apr 29, 2015
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Apr 29, 2015
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
Apr 29, 2015
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
Apr 28, 2015
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
Apr 28, 2015
Achievement
Testing and Debugging

Build a Simple Android App (2014)

Achieved
Apr 28, 2015
Achievement
Improving Our Code

Build a Simple Android App (2014)

Achieved
Apr 28, 2015
Achievement
Coding the Fun Facts

Build a Simple Android App (2014)

Achieved
Apr 27, 2015
Achievement
Basic Android Programming

Build a Simple Android App (2014)

Achieved
Apr 27, 2015
Achievement
Creating the Initial Screen Layout

Build a Simple Android App (2014)

Achieved
Apr 27, 2015
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Apr 27, 2015
Achievement
Creating HTML Content

How to Make a Website

Achieved
Apr 27, 2015
Achievement
Getting Started with Android

Build a Simple Android App (2014)

Achieved
Apr 26, 2015
Achievement
Getting Started with Java

Java Basics

Achieved
Apr 26, 2015
Achievement
HTML First

How to Make a Website

Achieved
Apr 26, 2015
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Apr 25, 2015
Achievement
Newbie

Achieved
Apr 25, 2015