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Zijun Liao

Member Since August 2, 2017

13,409

Total Points

•
4,407

JavaScript

4407 pts
Achievements

0 pts
Forum
•
1,694

CSS

1693 pts
Achievements

1 pts
Forum
•
1,622

PHP

1622 pts
Achievements

0 pts
Forum
•
1,602

Java

1602 pts
Achievements

0 pts
Forum
•
861

Databases

861 pts
Achievements

0 pts
Forum
•
782

HTML

782 pts
Achievements

0 pts
Forum
•
414

Android

414 pts
Achievements

0 pts
Forum
•
248

Development Tools

248 pts
Achievements

0 pts
Forum
•
147

Data Analysis

147 pts
Achievements

0 pts
Forum
•
120

Python

120 pts
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0 pts
Forum
•
40

Digital Literacy

40 pts
Achievements

0 pts
Forum
•
1

Computer Science

1 pts
Achievements

0 pts
Forum
•
1

Quality Assurance

1 pts
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0 pts
Forum
•
1

Business

1 pts
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0 pts
Forum

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165 Achievements

Achievement
Getting Started with Sass

Sass Basics

Achieved
Jul 3, 2019
Achievement
Captioning Video

HTML Video and Audio

Achieved
Jun 17, 2019
Achievement
Media Basics

HTML Video and Audio

Achieved
Jun 16, 2019
Achievement
Managing State and Data Flow

React Components (2018)

Achieved
Mar 19, 2019
Achievement
Build Modular Interfaces with Components

React Components (2018)

Achieved
Mar 17, 2019
Achievement
Updating and Uninstalling Packages with npm

npm Basics (retiring)

Achieved
Mar 16, 2019
Achievement
Installing Packages with npm

npm Basics (retiring)

Achieved
Mar 16, 2019
Achievement
What is npm?

npm Basics (retiring)

Achieved
Mar 16, 2019
Achievement
Stateful Components

React Basics (2018)

Achieved
Mar 6, 2019
Achievement
Callbacks and the DOM

Callback Functions in JavaScript

Achieved
Mar 6, 2019
Achievement
Callbacks with Timers

Callback Functions in JavaScript

Achieved
Mar 6, 2019
Achievement
Introduction to Callback Functions

Callback Functions in JavaScript

Achieved
Mar 6, 2019
Achievement
Introducing Props

React Basics (2018)

Achieved
Feb 12, 2019
Achievement
Thinking in Components

React Basics (2018)

Achieved
Feb 10, 2019
Achievement
First Steps in React

React Basics (2018)

Achieved
Feb 10, 2019
Achievement
Classes

Introducing ES2015

Achieved
Feb 7, 2019
Achievement
Getting Started with Java

Java Basics

Achieved
Feb 7, 2019
Achievement
Combining Array Methods

JavaScript Array Iteration Methods

Achieved
Feb 5, 2019
Achievement
Array Manipulation

JavaScript Array Iteration Methods

Achieved
Feb 5, 2019
Achievement
Array Iteration

JavaScript Array Iteration Methods

Achieved
Feb 5, 2019
Achievement
Objects and New Collection Types

Introducing ES2015

Achieved
Feb 2, 2019
Achievement
The Cooler Parts of ES2015

Introducing ES2015

Achieved
Jan 29, 2019
Achievement
ES2015 Basics

Introducing ES2015

Achieved
Jan 26, 2019
Achievement
Building Constructor Methods and Generating Objects

Object-Oriented JavaScript: Challenge

Achieved
Jan 26, 2019
Achievement
Introducing 'Four in a Row'

Object-Oriented JavaScript: Challenge

Achieved
Jan 25, 2019
Achievement
Getters and Setters

Object-Oriented JavaScript

Achieved
Jan 25, 2019
Achievement
Working with Classes in JavaScript

Object-Oriented JavaScript

Achieved
Jan 24, 2019
Achievement
Object Basics

Object-Oriented JavaScript

Achieved
Jan 24, 2019
Achievement
Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achieved
Jan 24, 2019
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Jan 21, 2019
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Jan 20, 2019
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Jan 18, 2019
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Jan 17, 2019
Achievement
Create Function Using Arrow Syntax

Getting Started With ES2015

Achieved
Jan 17, 2019
Achievement
Using Template Literals

Getting Started With ES2015

Achieved
Jan 17, 2019
Achievement
Defining Variables With let and const

Getting Started With ES2015

Achieved
Jan 17, 2019
Achievement
PHPDB Stage 1: Databases and PHP

Integrating PHP with Databases

Achieved
Jan 16, 2019
Achievement
Date and Time Functions

Reporting with SQL

Achieved
Jan 15, 2019
Achievement
Aggregate and Numeric Functions

Reporting with SQL

Achieved
Jan 14, 2019
Achievement
Working with Text

Reporting with SQL

Achieved
Jan 14, 2019
Achievement
Ordering, Limiting and Paging Results

Reporting with SQL

Achieved
Jan 14, 2019
Achievement
An Overview of Hooks in WordPress

WordPress Hooks - Actions and Filters

Achieved
Jan 14, 2019
Achievement
Archive Templates in WordPress

The WordPress Template Hierarchy

Achieved
Jan 11, 2019
Achievement
Page and Post Templates in WordPress

The WordPress Template Hierarchy

Achieved
Jan 11, 2019
Achievement
Homepage Templates in WordPress

The WordPress Template Hierarchy

Achieved
Jan 11, 2019
Achievement
Core WordPress Theme Files

The WordPress Template Hierarchy

Achieved
Jan 11, 2019
Achievement
How WordPress Templates Work

The WordPress Template Hierarchy

Achieved
Jan 11, 2019
Achievement
Building Forms With Bootstrap

Bootstrap Basics

Achieved
Jan 10, 2019
Achievement
Using Bootstrap Components

Bootstrap Basics

Achieved
Jan 9, 2019
Achievement
Responsive Layouts With the Bootstrap Grid

Bootstrap Basics

Achieved
Jan 8, 2019
Achievement
The Data Analysis Process

Data Analysis Basics

Achieved
Jan 8, 2019
Achievement
Getting to Know Your Data

Data Analysis Basics

Achieved
Jan 7, 2019
Achievement
Introducing Data Analysis

Data Analysis Basics

Achieved
Jan 7, 2019
Achievement
Finishing Your WordPress Theme

WordPress Theme Development

Achieved
Jan 7, 2019
Achievement
Custom Homepage Templates in WordPress

WordPress Theme Development

Achieved
Jan 7, 2019
Achievement
Adding a Blog to a WordPress Theme

WordPress Theme Development

Achieved
Jan 7, 2019
Achievement
Custom Post Type Templates

WordPress Theme Development

Achieved
Dec 17, 2018
Achievement
Building Out WordPress Navigation

WordPress Theme Development

Achieved
Nov 6, 2018
Achievement
Building Page Templates in WordPress

WordPress Theme Development

Achieved
Nov 5, 2018
Achievement
The WordPress Loop

WordPress Theme Development

Achieved
Nov 5, 2018
Achievement
WordPress Header and Footer Templates

WordPress Theme Development

Achieved
Nov 5, 2018
Achievement
Working with CSS and JS in WordPress Themes

WordPress Theme Development

Achieved
Nov 5, 2018
Achievement
Starting a WordPress Theme

WordPress Theme Development

Achieved
Nov 2, 2018
Achievement
More Advanced PHP for WordPress

PHP for WordPress

Achieved
Nov 2, 2018
Achievement
PHP Basics for WordPress

PHP for WordPress

Achieved
Oct 31, 2018
Achievement
Introduction to PHP for WordPress

PHP for WordPress

Achieved
Oct 30, 2018
Achievement
Building a Collection

Object-Oriented PHP Basics

Achieved
Oct 29, 2018
Achievement
Building the Recipe

Object-Oriented PHP Basics

Achieved
Oct 25, 2018
Achievement
Understanding Classes

Object-Oriented PHP Basics

Achieved
Oct 25, 2018
Achievement
Why Object-Oriented Programming?

Object-Oriented PHP Basics

Achieved
Oct 24, 2018
Achievement
PHP Email Form Errors

Build a Basic PHP Website (2018)

Achieved
Oct 24, 2018
Achievement
PHP Email Forms

Build a Basic PHP Website (2018)

Achieved
Oct 24, 2018
Achievement
PHP Inventory

Build a Basic PHP Website (2018)

Achieved
Oct 22, 2018
Achievement
PHP Includes

Build a Basic PHP Website (2018)

Achieved
Oct 18, 2018
Achievement
PHP Internal Functions

PHP Functions

Achieved
Oct 17, 2018
Achievement
PHP Returns & Closures

PHP Functions

Achieved
Oct 17, 2018
Achievement
PHP Functions Basics

PHP Functions

Achieved
Oct 17, 2018
Achievement
Getting to Know Bootstrap 4

Bootstrap Basics

Achieved
Oct 15, 2018
Achievement
Advanced Selectors

CSS Selectors

Achieved
Oct 6, 2018
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Oct 6, 2018
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Oct 5, 2018
Achievement
Choosing Options

HTML Forms

Achieved
Oct 4, 2018
Achievement
Organizing Forms

HTML Forms

Achieved
Oct 4, 2018
Achievement
Form Basics

HTML Forms

Achieved
Oct 4, 2018
Achievement
Building a Layout with Flexbox

CSS Flexbox Layout

Achieved
Sep 29, 2018
Achievement
Flexbox Properties

CSS Flexbox Layout

Achieved
Sep 23, 2018
Achievement
PHP Loops

PHP Arrays and Control Structures

Achieved
Aug 31, 2018
Achievement
PHP Arrays

PHP Arrays and Control Structures

Achieved
Aug 30, 2018
Achievement
PHP Conditionals

PHP Arrays and Control Structures

Achieved
Jul 17, 2018
Achievement
PHP on the Web

PHP Basics

Achieved
Jul 17, 2018
Achievement
Daily Exercise Program

PHP Basics

Achieved
Jul 17, 2018
Achievement
Unit Converter

PHP Basics

Achieved
Jul 16, 2018
Achievement
Getting to Know PHP

PHP Basics

Achieved
Jul 16, 2018
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Apr 29, 2018
Achievement
Introducing Spreadsheets

Spreadsheet Basics

Achieved
Apr 26, 2018
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Apr 26, 2018
Achievement
Media Queries

Responsive Layouts

Achieved
Apr 26, 2018
Achievement
Responsive Theory

Responsive Layouts

Achieved
Apr 26, 2018
Achievement
Working with jQuery Collections (2017)

jQuery Basics

Achieved
Apr 25, 2018
Achievement
Understanding jQuery Events and DOM Traversal (2017)

jQuery Basics

Achieved
Apr 25, 2018
Achievement
Introducing jQuery (2017)

jQuery Basics

Achieved
Apr 23, 2018
Achievement
Traversing the DOM

JavaScript and the DOM (Retiring)

Achieved
Apr 22, 2018
Achievement
Responding to User Interaction

Interacting with the DOM

Achieved
Apr 21, 2018
Achievement
Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achieved
Apr 21, 2018
Achievement
Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achieved
Apr 20, 2018
Achievement
The Browser Environment

JavaScript and the DOM (Retiring)

Achieved
Apr 19, 2018
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Apr 19, 2018
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Apr 18, 2018
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Apr 17, 2018
Achievement
Positioning Page Content

CSS Layout Basics

Achieved
Apr 16, 2018
Achievement
CSS Layout Project

CSS Layout Basics

Achieved
Apr 15, 2018
Achievement
Controlling Layout with CSS Display Modes

CSS Layout Basics

Achieved
Apr 8, 2018
Achievement
Getting Started with CSS Layout

CSS Layout Basics

Achieved
Apr 8, 2018
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Apr 7, 2018
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Apr 7, 2018
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Apr 6, 2018
Achievement
Page Layout with the Float Property

CSS Layout Basics

Achieved
Apr 5, 2018
Achievement
The Box Model

CSS Basics (2014)

Achieved
Apr 4, 2018
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Apr 4, 2018
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Apr 3, 2018
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Apr 2, 2018
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Apr 2, 2018
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Apr 2, 2018
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Apr 1, 2018
Achievement
File Uploads and Entity Updates in Spring + Hibernate

Spring with Hibernate

Achieved
Mar 30, 2018
Achievement
User Messages in Spring

Spring with Hibernate

Achieved
Feb 21, 2018
Achievement
Getting Started with CRUD in Spring + Hibernate

Spring with Hibernate

Achieved
Feb 20, 2018
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Feb 18, 2018
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Feb 18, 2018
Achievement
Finishing the Game

Introducing JavaScript

Achieved
Feb 12, 2018
Achievement
Introducing JavaScript

Introducing JavaScript

Achieved
Feb 12, 2018
Achievement
Getting Started With HTML

HTML Basics

Achieved
Jan 31, 2018
Achievement
Data-Driven Application Design

Spring with Hibernate

Achieved
Jan 30, 2018
Achievement
Integrating Hibernate with Spring

Spring with Hibernate

Achieved
Jan 28, 2018
Achievement
Persisting Data with Hibernate

Hibernate Basics

Achieved
Jan 20, 2018
Achievement
Getting Started with Hibernate

Hibernate Basics

Achieved
Jan 18, 2018
Achievement
Data Persistence & ORMs

Hibernate Basics

Achieved
Jan 18, 2018
Achievement
Handling Errors When Manipulating Data

Modifying Data with SQL

Achieved
Jan 16, 2018
Achievement
Deleting Data from a Database

Modifying Data with SQL

Achieved
Jan 15, 2018
Achievement
Updating Data in a Database

Modifying Data with SQL

Achieved
Jan 15, 2018
Achievement
Adding Data to a Database

Modifying Data with SQL

Achieved
Jan 15, 2018
Achievement
Finding the Data You Want

SQL Basics

Achieved
Jan 15, 2018
Achievement
Getting Data from a Database

SQL Basics

Achieved
Jan 15, 2018
Achievement
Data, Databases and SQL

SQL Basics

Achieved
Jan 15, 2018
Achievement
Using the MVC Architecture with Spring

Spring Basics

Achieved
Jan 12, 2018
Achievement
What to Test

Unit Testing in Java

Achieved
Jan 12, 2018
Achievement
How To Test

Unit Testing in Java

Achieved
Jan 12, 2018
Achievement
Why Test

Unit Testing in Java

Achieved
Jan 12, 2018
Achievement
Modeling, Storing, and Presenting Data with Spring

Spring Basics

Achieved
Jan 11, 2018
Achievement
GET and POST Requests in a Browser

HTTP Basics

Achieved
Jan 11, 2018
Achievement
Introduction to HTTP

HTTP Basics

Achieved
Jan 11, 2018
Achievement
Using Java's Built-In Annotations

Java Annotations

Achieved
Jan 11, 2018
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Jan 5, 2018
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Jan 5, 2018
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Jan 5, 2018
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Jan 4, 2018
Achievement
Creating Spring Controllers and Thymeleaf Views

Spring Basics

Achieved
Dec 27, 2017
Achievement
Spring Components and Configuring Our App

Spring Basics

Achieved
Dec 26, 2017
Achievement
Setting Up Your Local Environment for Spring Development

Spring Basics

Achieved
Dec 21, 2017
Achievement
Testing and Debugging

Build a Simple Android App with Java

Achieved
Sep 4, 2017
Achievement
Basic Android Programming

Build a Simple Android App with Java

Achieved
Sep 4, 2017
Achievement
Creating the Screen Layout

Build a Simple Android App with Java

Achieved
Sep 3, 2017
Achievement
Getting Started with Android

Build a Simple Android App with Java

Achieved
Sep 3, 2017
Achievement
Python For Beginners

Python Basics (2015)

Achieved
Aug 2, 2017
Achievement
Newbie

Achieved
Aug 2, 2017