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David Tsai

Taoyuan, Taiwan

Open to Work

7,969

Total Points

•
3,448

JavaScript

3448 pts
Achievements

0 pts
Forum
•
1,486

Java

1486 pts
Achievements

0 pts
Forum
•
1,307

CSS

1307 pts
Achievements

0 pts
Forum
•
1,080

HTML

1080 pts
Achievements

0 pts
Forum
•
92

Python

92 pts
Achievements

0 pts
Forum
•
71

Development Tools

71 pts
Achievements

0 pts
Forum
•
68

Digital Literacy

68 pts
Achievements

0 pts
Forum
•
46

C#

46 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
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Skills & Experience

Spoken Languages
- Chinese
- English

92 Achievements

Achievement
Handling Errors in Node

Node.js Basics 2017

Achieved
Jul 5, 2018
Achievement
Getting Data From an API With Node

Node.js Basics 2017

Achieved
Jun 23, 2018
Achievement
Getters and Setters

Object-Oriented JavaScript

Achieved
Jun 18, 2018
Achievement
Working with Classes in JavaScript

Object-Oriented JavaScript

Achieved
Jun 18, 2018
Achievement
Object Basics

Object-Oriented JavaScript

Achieved
Jun 17, 2018
Achievement
Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achieved
Jun 16, 2018
Achievement
Working with jQuery Collections (2017)

jQuery Basics

Achieved
Jun 9, 2018
Achievement
Understanding jQuery Events and DOM Traversal (2017)

jQuery Basics

Achieved
Jun 9, 2018
Achievement
Introducing jQuery (2017)

jQuery Basics

Achieved
Jun 9, 2018
Achievement
Graphical User Interfaces

Build a JavaFX Application

Achieved
Mar 8, 2018
Achievement
IDE Exploration

Local Development Environments

Achieved
Mar 4, 2018
Achievement
Introduction to HTTP

HTTP Basics

Achieved
Mar 3, 2018
Achievement
Improving the Application Code

DOM Scripting By Example

Achieved
Mar 2, 2018
Achievement
Editing and Filtering Names

DOM Scripting By Example

Achieved
Mar 1, 2018
Achievement
Adding and Removing Names

DOM Scripting By Example

Achieved
Mar 1, 2018
Achievement
Traversing the DOM

JavaScript and the DOM (Retiring)

Achieved
Feb 28, 2018
Achievement
Responding to User Interaction

Interacting with the DOM

Achieved
Feb 28, 2018
Achievement
Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achieved
Feb 28, 2018
Achievement
Create Function Using Arrow Syntax

Getting Started With ES2015

Achieved
Feb 26, 2018
Achievement
Using Template Literals

Getting Started With ES2015

Achieved
Feb 26, 2018
Achievement
Defining Variables With let and const

Getting Started With ES2015

Achieved
Feb 25, 2018
Achievement
How it Works

Local Development Environments

Achieved
Feb 23, 2018
Achievement
Introduction to Node.js

Node.js Basics 2017

Achieved
Feb 19, 2018
Achievement
Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achieved
Feb 19, 2018
Achievement
The Browser Environment

JavaScript and the DOM (Retiring)

Achieved
Feb 19, 2018
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Feb 18, 2018
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Feb 18, 2018
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Feb 18, 2018
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Feb 16, 2018
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Feb 15, 2018
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Feb 14, 2018
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Feb 13, 2018
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Feb 13, 2018
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Feb 13, 2018
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Feb 10, 2018
Achievement
Exploring the Java Collections Framework

Java Data Structures

Achieved
Feb 9, 2018
Achievement
Finishing the Game

Introducing JavaScript

Achieved
Feb 7, 2018
Achievement
Introducing JavaScript

Introducing JavaScript

Achieved
Feb 7, 2018
Achievement
Python For Beginners

Python Basics (2015)

Achieved
Feb 1, 2018
Achievement
Organizing Data

Java Data Structures

Achieved
Feb 1, 2018
Achievement
Prepare and Plan

C# Basics (Retired)

Achieved
Jan 31, 2018
Achievement
Getting There

Java Data Structures

Achieved
Jan 28, 2018
Achievement
Gotchas and Wins

Java Arrays

Achieved
Jan 25, 2018
Achievement
Iteration

Java Arrays

Achieved
Jan 25, 2018
Achievement
Creation

Java Arrays

Achieved
Jan 24, 2018
Achievement
Delivering the MVP

Java Objects

Achieved
Jan 23, 2018
Achievement
Creating the MVP

Java Objects

Achieved
Jan 20, 2018
Achievement
Harnessing the Power of Objects

Java Objects

Achieved
Jan 18, 2018
Achievement
Meet Objects

Java Objects

Achieved
Jan 17, 2018
Achievement
Perfecting the Prototype

Java Basics

Achieved
Sep 9, 2017
Achievement
Using your New Tools

Java Basics

Achieved
Aug 26, 2017
Achievement
Getting Started with Java

Java Basics

Achieved
Aug 23, 2017
Achievement
Flexbox Properties

CSS Flexbox Layout

Achieved
Aug 9, 2017
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Aug 8, 2017
Achievement
Going Further with HTML

HTML Basics

Achieved
Aug 5, 2017
Achievement
Images, Text and Links

HTML Basics

Achieved
Aug 5, 2017
Achievement
Structuring Your Content

HTML Basics

Achieved
Aug 3, 2017
Achievement
Getting Started With HTML

HTML Basics

Achieved
Aug 1, 2017
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Aug 1, 2017
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Jul 31, 2017
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Jul 31, 2017
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Jul 30, 2017
Achievement
Introduction to Front-End Frameworks

Framework Basics

Achieved
Jul 19, 2017
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Jul 17, 2017
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Jul 11, 2017
Achievement
Media Queries

Responsive Layouts

Achieved
Jul 11, 2017
Achievement
Responsive Theory

Responsive Layouts

Achieved
Jul 11, 2017
Achievement
Positioning Page Content

CSS Layout Basics

Achieved
Jul 9, 2017
Achievement
CSS Layout Project

CSS Layout Basics

Achieved
Jul 8, 2017
Achievement
Page Layout with the Float Property

CSS Layout Basics

Achieved
Jun 29, 2017
Achievement
Controlling Layout with CSS Display Modes

CSS Layout Basics

Achieved
Jun 25, 2017
Achievement
Getting Started with CSS Layout

CSS Layout Basics

Achieved
May 21, 2017
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
May 19, 2017
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
May 17, 2017
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
May 14, 2017
Achievement
Basic Layout

CSS Basics (2014)

Achieved
May 10, 2017
Achievement
The Box Model

CSS Basics (2014)

Achieved
May 6, 2017
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
May 3, 2017
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Apr 30, 2017
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Apr 16, 2017
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Apr 9, 2017
Achievement
Sharing a Website

How to Make a Website

Achieved
Apr 8, 2017
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Apr 4, 2017
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
Apr 3, 2017
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
Mar 22, 2017
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
Mar 18, 2017
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Mar 11, 2017
Achievement
Creating HTML Content

How to Make a Website

Achieved
Mar 11, 2017
Achievement
HTML First

How to Make a Website

Achieved
Mar 4, 2017
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Mar 1, 2017
Achievement
Introduction

HTML

Achieved
Feb 28, 2017
Achievement
Newbie

Achieved
Feb 28, 2017