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Peng Liu

Courses Plus Student

Member Since August 20, 2015

14,273

Total Points

•
2,626

JavaScript

2626 pts
Achievements

0 pts
Forum
•
1,938

CSS

1938 pts
Achievements

0 pts
Forum
•
1,927

Design

1927 pts
Achievements

0 pts
Forum
•
1,797

Development Tools

1797 pts
Achievements

0 pts
Forum
•
1,388

HTML

1388 pts
Achievements

0 pts
Forum
•
1,269

Ruby

1269 pts
Achievements

0 pts
Forum
•
1,251

Java

1250 pts
Achievements

1 pts
Forum
•
1,093

PHP

1093 pts
Achievements

0 pts
Forum
•
289

Business

289 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
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170 Achievements

Achievement
IDE Exploration

Local Development Environments

Achieved
Feb 17, 2016
Achievement
How it Works

Local Development Environments

Achieved
Feb 14, 2016
Achievement
Efficiency!

Java Data Structures

Achieved
Feb 12, 2016
Achievement
Exploring the Java Collections Framework

Java Data Structures

Achieved
Feb 8, 2016
Achievement
Organizing Data

Java Data Structures

Achieved
Feb 5, 2016
Achievement
Getting There

Java Data Structures

Achieved
Feb 2, 2016
Achievement
Delivering the MVP

Java Objects (Retired)

Achieved
Jan 30, 2016
Achievement
Creating the MVP

Java Objects (Retired)

Achieved
Jan 28, 2016
Achievement
Harnessing the Power of Objects

Java Objects (Retired)

Achieved
Jan 23, 2016
Achievement
Meet Objects

Java Objects (Retired)

Achieved
Jan 23, 2016
Achievement
Perfecting the Prototype

Java Basics

Achieved
Jan 19, 2016
Achievement
Using your New Tools

Java Basics

Achieved
Jan 18, 2016
Achievement
Getting Started with Java

Java Basics

Achieved
Jan 16, 2016
Achievement
Password Resets and Testing

User Authentication with Rails

Achieved
Jan 1, 2016
Achievement
Adding User Support to Our Application

User Authentication with Rails

Achieved
Dec 30, 2015
Achievement
Password Hashing and Sign-In

User Authentication with Rails

Achieved
Dec 28, 2015
Achievement
AR Extensions

ActiveRecord Basics

Achieved
Dec 26, 2015
Achievement
Callbacks

ActiveRecord Basics

Achieved
Dec 23, 2015
Achievement
Query Interface

ActiveRecord Basics

Achieved
Dec 22, 2015
Achievement
Validation

ActiveRecord Basics

Achieved
Dec 21, 2015
Achievement
Migrations and Relationships

ActiveRecord Basics

Achieved
Dec 20, 2015
Achievement
Introduction to ActiveRecord

ActiveRecord Basics

Achieved
Dec 19, 2015
Achievement
Build a Todo List Application with Rails 4

Build a Todo List Application with Rails 4

Achieved
Dec 19, 2015
Achievement
Installing a Ruby Development Environment

Installing a Ruby Development Environment

Achieved
Dec 13, 2015
Achievement
Ruby Methods

Ruby Basics (Retired)

Achieved
Dec 12, 2015
Achievement
Ruby Numbers (Ruby Basics)

Ruby Basics (Retired)

Achieved
Dec 11, 2015
Achievement
Ruby Strings (Ruby Basics)

Ruby Basics (Retired)

Achieved
Dec 10, 2015
Achievement
How Ruby Works

Ruby Basics (Retired)

Achieved
Dec 8, 2015
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Dec 6, 2015
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Dec 6, 2015
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Dec 6, 2015
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Dec 6, 2015
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Dec 5, 2015
Achievement
Web Apps

Accessibility

Achieved
Dec 4, 2015
Achievement
Websites

Accessibility

Achieved
Dec 3, 2015
Achievement
Introduction

Accessibility

Achieved
Dec 2, 2015
Achievement
Quiz Practice Project

Object-Oriented JavaScript (2015)

Achieved
Dec 1, 2015
Achievement
Prototypal Inheritance

Object-Oriented JavaScript (2015)

Achieved
Dec 1, 2015
Achievement
Constructor Functions & Prototypes

Object-Oriented JavaScript (2015)

Achieved
Nov 30, 2015
Achievement
Introduction to Methods

Object-Oriented JavaScript (2015)

Achieved
Nov 29, 2015
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Nov 28, 2015
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Nov 25, 2015
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Nov 23, 2015
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Nov 21, 2015
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Nov 20, 2015
Achievement
Media Queries

Responsive Layouts

Achieved
Nov 19, 2015
Achievement
Responsive Theory

Responsive Layouts

Achieved
Nov 18, 2015
Achievement
Custom Media Players

HTML Video and Audio (Retired)

Achieved
Nov 17, 2015
Achievement
Captioning Video

HTML Video and Audio (Retired)

Achieved
Nov 17, 2015
Achievement
Media Basics

HTML Video and Audio (Retired)

Achieved
Nov 16, 2015
Achievement
Traversing and Manipulating the DOM with JavaScript

Interactive Web Pages with JavaScript

Achieved
Nov 15, 2015
Achievement
Selecting Elements and Adding Events with JavaScript

Interactive Web Pages with JavaScript

Achieved
Nov 14, 2015
Achievement
JavaScript and the DOM

Interactive Web Pages with JavaScript

Achieved
Nov 14, 2015
Achievement
Creating a Simple Drawing Application

jQuery Basics (2014)

Achieved
Nov 13, 2015
Achievement
Creating a Password Confirmation Form

jQuery Basics (2014)

Achieved
Nov 12, 2015
Achievement
Creating a Mobile Drop Down Menu

jQuery Basics (2014)

Achieved
Nov 11, 2015
Achievement
Creating a Simple Lightbox

jQuery Basics (2014)

Achieved
Nov 10, 2015
Achievement
Creating a Spoiler Revealer

jQuery Basics (2014)

Achieved
Nov 9, 2015
Achievement
Introduction to jQuery

jQuery Basics (2014)

Achieved
Nov 9, 2015
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Nov 8, 2015
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Nov 6, 2015
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Nov 5, 2015
Achievement
Workflows

Git Basics

Achieved
Oct 31, 2015
Achievement
Working With Remote Repositories

Git Basics

Achieved
Oct 31, 2015
Achievement
Merging

Git Basics

Achieved
Oct 30, 2015
Achievement
Branches

Git Basics

Achieved
Oct 29, 2015
Achievement
Getting Started With Git

Git Basics

Achieved
Oct 28, 2015
Achievement
Why Version Control Matters

Git Basics

Achieved
Oct 28, 2015
Achievement
Installing Programs

Console Foundations

Achieved
Oct 28, 2015
Achievement
Environment and Redirection

Console Foundations

Achieved
Oct 27, 2015
Achievement
Console Processes

Console Foundations

Achieved
Oct 26, 2015
Achievement
Console Users and Permission

Console Foundations

Achieved
Oct 26, 2015
Achievement
Moving Around in the Console

Console Foundations

Achieved
Oct 25, 2015
Achievement
Database Security

PHP & Databases with PDO

Achieved
Oct 24, 2015
Achievement
Queries & Results

PHP & Databases with PDO

Achieved
Oct 24, 2015
Achievement
Getting Started with PDO

PHP & Databases with PDO

Achieved
Oct 22, 2015
Achievement
Securing and Maintaining a MySQL Database

Database Foundations

Achieved
Oct 21, 2015
Achievement
SQL Calculating, Aggregating and Other Functions

Database Foundations

Achieved
Oct 20, 2015
Achievement
Joining Relational Data Between Tables in SQL

Database Foundations

Achieved
Oct 19, 2015
Achievement
Manipulating Schema with SQL

Database Foundations

Achieved
Oct 18, 2015
Achievement
Creating Tables and Manipulating Data with SQL

Database Foundations

Achieved
Oct 17, 2015
Achievement
Reading Data from Databases with SQL

Database Foundations

Achieved
Oct 15, 2015
Achievement
Installing MySQL Server and MySQL Workbench

Database Foundations

Achieved
Oct 14, 2015
Achievement
Introduction to Data, Databases and SQL

Database Foundations

Achieved
Oct 13, 2015
Achievement
Contact Forms & Mailers

Building Websites with PHP

Achieved
Oct 11, 2015
Achievement
Slim and Templates

Building Websites with PHP

Achieved
Oct 10, 2015
Achievement
Dependency Management

Building Websites with PHP

Achieved
Oct 10, 2015
Achievement
PHP Inheritance & Interfaces

Object-Oriented PHP Basics (Retired)

Achieved
Oct 10, 2015
Achievement
PHP Properties & Methods

Object-Oriented PHP Basics (Retired)

Achieved
Oct 9, 2015
Achievement
PHP Objects and Classes

Object-Oriented PHP Basics (Retired)

Achieved
Oct 9, 2015
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Oct 8, 2015
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Oct 7, 2015
Achievement
PHP Internal Functions

PHP Functions

Achieved
Oct 6, 2015
Achievement
PHP Returns & Closures

PHP Functions

Achieved
Oct 5, 2015
Achievement
PHP Functions Basics

PHP Functions

Achieved
Oct 5, 2015
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Oct 5, 2015
Achievement
PHP Loops

PHP Basics (Retired)

Achieved
Oct 4, 2015
Achievement
PHP Conditionals

PHP Basics (Retired)

Achieved
Oct 4, 2015
Achievement
PHP Datatypes

PHP Basics (Retired)

Achieved
Oct 4, 2015
Achievement
PHP Data & Structure

PHP Basics (Retired)

Achieved
Oct 3, 2015
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Oct 3, 2015
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Sep 30, 2015
Achievement
PHP Getting Started

PHP Basics (Retired)

Achieved
Sep 29, 2015
Achievement
Advanced Sass Concepts

Sass Basics (retired)

Achieved
Sep 27, 2015
Achievement
Speeding up Workflow With Sass

Sass Basics (retired)

Achieved
Sep 26, 2015
Achievement
Variables, Mixins, and Extending Selectors

Sass Basics (retired)

Achieved
Sep 25, 2015
Achievement
Getting Started with Sass

Sass Basics (retired)

Achieved
Sep 24, 2015
Achievement
Better SEO Through Tools

SEO Basics

Achieved
Sep 22, 2015
Achievement
Better SEO Through Code

SEO Basics

Achieved
Sep 22, 2015
Achievement
Better SEO Through Content

SEO Basics

Achieved
Sep 21, 2015
Achievement
Introduction to SEO

SEO Basics

Achieved
Sep 21, 2015
Achievement
Moving Forward with UX

UX Basics

Achieved
Sep 21, 2015
Achievement
Tools UXers Use

UX Basics

Achieved
Sep 20, 2015
Achievement
How UXers Think

UX Basics

Achieved
Sep 20, 2015
Achievement
What Do User Experience Designers Do?

UX Basics

Achieved
Sep 20, 2015
Achievement
What is User Experience (UX)?

UX Basics

Achieved
Sep 20, 2015
Achievement
Finalizing the Project

Brand Identity Basics

Achieved
Sep 20, 2015
Achievement
Case Studies and Examples

Brand Identity Basics

Achieved
Sep 20, 2015
Achievement
The Brand Identity Design Process

Brand Identity Basics

Achieved
Sep 20, 2015
Achievement
Introduction to Brand Identity

Brand Identity Basics

Achieved
Sep 20, 2015
Achievement
The Logo Sprint

Logo Design Basics

Achieved
Sep 20, 2015
Achievement
Logo Design 101

Logo Design Basics

Achieved
Sep 20, 2015
Achievement
Creating Home Page Assets

Illustrator Foundations

Achieved
Sep 19, 2015
Achievement
Applying Effects

Illustrator Foundations

Achieved
Sep 19, 2015
Achievement
How to Draw in Illustrator

Illustrator Foundations

Achieved
Sep 14, 2015
Achievement
Adding Color and Type

Illustrator Foundations

Achieved
Sep 13, 2015
Achievement
Creating an Icon

Illustrator Foundations

Achieved
Sep 12, 2015
Achievement
Introduction to Illustrator

Illustrator Foundations

Achieved
Sep 12, 2015
Achievement
Workflow Basics

Photoshop Foundations

Achieved
Sep 11, 2015
Achievement
Slices & Save for Web

Photoshop Foundations

Achieved
Sep 10, 2015
Achievement
Vector Shapes

Photoshop Foundations

Achieved
Sep 10, 2015
Achievement
Type Tools

Photoshop Foundations

Achieved
Sep 10, 2015
Achievement
Masks Basics

Photoshop Foundations

Achieved
Sep 9, 2015
Achievement
Layer Basics

Photoshop Foundations

Achieved
Sep 9, 2015
Achievement
Workspace Basics

Photoshop Foundations

Achieved
Sep 9, 2015
Achievement
Design Foundations Final

Design Foundations

Achieved
Sep 7, 2015
Achievement
Becoming a Problem Solver

Design Foundations

Achieved
Sep 7, 2015
Achievement
Understanding Aesthetics

Design Foundations

Achieved
Sep 7, 2015
Achievement
Introduction to Design

Design Foundations

Achieved
Sep 7, 2015
Achievement
Grid Layout

CSS Layout Techniques

Achieved
Sep 5, 2015
Achievement
Flexbox Layout

CSS Layout Techniques

Achieved
Sep 4, 2015
Achievement
Positioning Schemes

CSS Layout Techniques

Achieved
Sep 4, 2015
Achievement
Float Layout

CSS Layout Techniques

Achieved
Sep 3, 2015
Achievement
Display Modes

CSS Layout Techniques

Achieved
Sep 3, 2015
Achievement
Structuring Tables

HTML Tables

Achieved
Sep 2, 2015
Achievement
Table Basics

HTML Tables

Achieved
Sep 1, 2015
Achievement
Choosing Options

HTML Forms

Achieved
Aug 31, 2015
Achievement
Organizing Forms

HTML Forms

Achieved
Aug 31, 2015
Achievement
Form Basics

HTML Forms

Achieved
Aug 31, 2015
Achievement
Advanced Selectors

CSS Selectors

Achieved
Aug 30, 2015
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Aug 30, 2015
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Aug 29, 2015
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Aug 28, 2015
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Aug 28, 2015
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Aug 28, 2015
Achievement
The Box Model

CSS Basics (2014)

Achieved
Aug 27, 2015
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Aug 26, 2015
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Aug 25, 2015
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Aug 25, 2015
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Aug 22, 2015
Achievement
Sharing a Website

How to Make a Website

Achieved
Aug 22, 2015
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Aug 22, 2015
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
Aug 22, 2015
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
Aug 22, 2015
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
Aug 22, 2015
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Aug 22, 2015
Achievement
Creating HTML Content

How to Make a Website

Achieved
Aug 22, 2015
Achievement
HTML First

How to Make a Website

Achieved
Aug 22, 2015
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Aug 20, 2015
Achievement
Newbie

Achieved
Aug 20, 2015