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Tetsuya Yokoyama

Bangkok Thailand

11,286

Total Points

•
5,652

JavaScript

5652 pts
Achievements

0 pts
Forum
•
2,241

CSS

2241 pts
Achievements

0 pts
Forum
•
1,251

HTML

1251 pts
Achievements

0 pts
Forum
•
1,058

Development Tools

1058 pts
Achievements

0 pts
Forum
•
214

Design

214 pts
Achievements

0 pts
Forum
•
40

Digital Literacy

40 pts
Achievements

0 pts
Forum

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

Spoken Languages
- Japanese
- English

140 Achievements

Achievement
Refining the App

React by Example

Achieved
Jun 24, 2020
Achievement
Building the Application

React by Example

Achieved
Jun 24, 2020
Achievement
Setting up with Create React App

React by Example

Achieved
Jun 20, 2020
Achievement
Working with 'for' Loops

JavaScript Loops

Achieved
Jun 18, 2020
Achievement
Simplify Repetitive Tasks with Loops

JavaScript Loops

Achieved
Jun 18, 2020
Achievement
Going Further with Routing

React Router 4 Basics

Achieved
Jun 14, 2020
Achievement
Navigating, Nesting and Redirecting Routes

React Router 4 Basics

Achieved
Jun 13, 2020
Achievement
Getting Started with React Router

React Router 4 Basics

Achieved
Jun 12, 2020
Achievement
React Component Patterns

React Components (2018)

Achieved
Jun 5, 2020
Achievement
Stateful Components and Lifecycle Methods

React Components (2018)

Achieved
Jun 3, 2020
Achievement
Managing State and Data Flow

React Components (2018)

Achieved
May 31, 2020
Achievement
Build Modular Interfaces with Components

React Components (2018)

Achieved
May 30, 2020
Achievement
Stateful Components

React Basics (2018)

Achieved
May 27, 2020
Achievement
Introducing Props

React Basics (2018)

Achieved
May 27, 2020
Achievement
Thinking in Components

React Basics (2018)

Achieved
May 27, 2020
Achievement
First Steps in React

React Basics (2018)

Achieved
May 27, 2020
Achievement
Adding the Game Logic

Object-Oriented JavaScript: Challenge

Achieved
May 24, 2020
Achievement
Making the Game Interactive

Object-Oriented JavaScript: Challenge

Achieved
May 24, 2020
Achievement
Rendering the Game

Object-Oriented JavaScript: Challenge

Achieved
May 23, 2020
Achievement
Building Constructor Methods and Generating Objects

Object-Oriented JavaScript: Challenge

Achieved
May 22, 2020
Achievement
Introducing 'Four in a Row'

Object-Oriented JavaScript: Challenge

Achieved
May 20, 2020
Achievement
Combining Array Methods

JavaScript Array Iteration Methods

Achieved
May 20, 2020
Achievement
Array Manipulation

JavaScript Array Iteration Methods

Achieved
May 20, 2020
Achievement
Practice forEach

Practice forEach in JavaScript

Achieved
May 20, 2020
Achievement
Array Iteration

JavaScript Array Iteration Methods

Achieved
May 20, 2020
Achievement
Create Function Using Arrow Syntax

Getting Started With ES2015

Achieved
May 20, 2020
Achievement
Using Template Literals

Getting Started With ES2015

Achieved
May 20, 2020
Achievement
Defining Variables With let and const

Getting Started With ES2015

Achieved
May 19, 2020
Achievement
JavaScript Frameworks, Libraries, and Developer Roles

The JavaScript Ecosystem

Achieved
May 19, 2020
Achievement
JavaScript Outside of the Browser

The JavaScript Ecosystem

Achieved
May 18, 2020
Achievement
JavaScript Tools and Workflows

The Landscape of JavaScript

Achieved
May 18, 2020
Achievement
JavaScript is Everywhere

The Landscape of JavaScript

Achieved
May 18, 2020
Achievement
Going Further with Grid Layout

CSS Grid Layout

Achieved
May 17, 2020
Achievement
Flexible Sized Grids

CSS Grid Layout

Achieved
May 17, 2020
Achievement
Introducing Grid Layout

CSS Grid Layout

Achieved
May 16, 2020
Achievement
Adding 3D Effects with CSS

CSS Transitions and Transforms

Achieved
May 13, 2020
Achievement
Getting Started with CSS Transforms

CSS Transitions and Transforms

Achieved
May 13, 2020
Achievement
Transition Timing Functions and Delays

CSS Transitions and Transforms

Achieved
May 12, 2020
Achievement
Getting Started with CSS Transitions

CSS Transitions and Transforms

Achieved
May 11, 2020
Achievement
How to Choose and Use Fonts

Typography for Designers

Achieved
May 11, 2020
Achievement
Introduction to Typography

Typography for Designers

Achieved
May 11, 2020
Achievement
Discovery

Web Design Process

Achieved
May 10, 2020
Achievement
Exploration

Web Design Process

Achieved
May 10, 2020
Achievement
Introduction to SVG

SVG Basics

Achieved
May 10, 2020
Achievement
Creating an SVG

SVG Basics

Achieved
May 10, 2020
Achievement
Using a jQuery Carousel

Using jQuery Plugins

Achieved
May 10, 2020
Achievement
Add a Sticky Navigation Bar

Using jQuery Plugins

Achieved
May 10, 2020
Achievement
Introducing jQuery Plugins

Using jQuery Plugins

Achieved
May 10, 2020
Achievement
Working with jQuery Collections (2017)

jQuery Basics

Achieved
May 9, 2020
Achievement
Understanding jQuery Events and DOM Traversal (2017)

jQuery Basics

Achieved
May 8, 2020
Achievement
Introducing jQuery (2017)

jQuery Basics

Achieved
May 7, 2020
Achievement
Refactoring with Sass

CSS to Sass

Achieved
May 6, 2020
Achievement
Installing Sass and Setting up the Project

CSS to Sass

Achieved
May 6, 2020
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
May 6, 2020
Achievement
Testing for Accessibility

Web Accessibility Compliance

Achieved
May 6, 2020
Achievement
Mobile Accessibility

Web Accessibility Compliance

Achieved
May 6, 2020
Achievement
Accessible UI Patterns

Web Accessibility Compliance

Achieved
May 6, 2020
Achievement
Semantic HTML and WAI-ARIA

Web Accessibility Compliance

Achieved
May 6, 2020
Achievement
WCAG 2.0 (and Other Standards)

Web Accessibility Compliance

Achieved
May 6, 2020
Achievement
Access for Everybody

Web Accessibility Compliance

Achieved
May 6, 2020
Achievement
Checking Out and Returning a Book

Practice Object Interaction

Achieved
May 6, 2020
Achievement
Starting with Some Methods

Practice Object Interaction

Achieved
May 4, 2020
Achievement
The Rough Plan

Practice Object Interaction

Achieved
May 3, 2020
Achievement
Getters and Setters

Object-Oriented JavaScript

Achieved
May 3, 2020
Achievement
Practicing Classes

Practice Classes in JavaScript

Achieved
May 3, 2020
Achievement
Working with Classes in JavaScript

Object-Oriented JavaScript

Achieved
May 3, 2020
Achievement
Practicing Object Basics

Practice Object Basics in JavaScript

Achieved
May 3, 2020
Achievement
Object Basics

Object-Oriented JavaScript

Achieved
May 3, 2020
Achievement
Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achieved
May 3, 2020
Achievement
Exploring Async/Await

Asynchronous Programming with JavaScript

Achieved
May 2, 2020
Achievement
Understanding Promises

Asynchronous Programming with JavaScript

Achieved
May 2, 2020
Achievement
Asynchronous JavaScript with Callbacks

Asynchronous Programming with JavaScript

Achieved
May 2, 2020
Achievement
What is Asynchronous Programming?

Asynchronous Programming with JavaScript

Achieved
May 1, 2020
Achievement
Programming AJAX

AJAX Basics

Achieved
Apr 29, 2020
Achievement
AJAX Concepts

AJAX Basics

Achieved
Apr 29, 2020
Achievement
Captioning Video

HTML Video and Audio

Achieved
Apr 29, 2020
Achievement
Media Basics

HTML Video and Audio

Achieved
Apr 29, 2020
Achievement
Structuring Tables

HTML Tables

Achieved
Apr 29, 2020
Achievement
Table Basics

HTML Tables

Achieved
Apr 29, 2020
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Apr 29, 2020
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Apr 29, 2020
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Apr 29, 2020
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Apr 29, 2020
Achievement
Building Forms With Bootstrap

Bootstrap Basics

Achieved
Apr 29, 2020
Achievement
Using Bootstrap Components

Bootstrap Basics

Achieved
Apr 28, 2020
Achievement
Responsive Layouts With the Bootstrap Grid

Bootstrap Basics

Achieved
Apr 27, 2020
Achievement
Getting to Know Bootstrap 4

Bootstrap Basics

Achieved
Apr 26, 2020
Achievement
Traversing the DOM

JavaScript and the DOM (Retiring)

Achieved
Apr 26, 2020
Achievement
Responding to User Interaction

Interacting with the DOM

Achieved
Apr 26, 2020
Achievement
Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achieved
Apr 26, 2020
Achievement
Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achieved
Apr 25, 2020
Achievement
The Browser Environment

JavaScript and the DOM (Retiring)

Achieved
Apr 24, 2020
Achievement
Advanced Selectors

CSS Selectors

Achieved
Apr 24, 2020
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Apr 23, 2020
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Apr 23, 2020
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Apr 22, 2020
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Apr 22, 2020
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Apr 22, 2020
Achievement
GitHub and Other Remote Repositories

Introduction to Git

Achieved
Apr 22, 2020
Achievement
Managing Committed Files

Introduction to Git

Achieved
Apr 22, 2020
Achievement
First Commits

Introduction to Git

Achieved
Apr 22, 2020
Achievement
Choosing Options

HTML Forms

Achieved
Apr 21, 2020
Achievement
Organizing Forms

HTML Forms

Achieved
Apr 20, 2020
Achievement
Form Basics

HTML Forms

Achieved
Apr 20, 2020
Achievement
Building a Layout with Flexbox

CSS Flexbox Layout

Achieved
Apr 20, 2020
Achievement
Flexbox Properties

CSS Flexbox Layout

Achieved
Apr 20, 2020
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Apr 20, 2020
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Apr 19, 2020
Achievement
Media Queries

Responsive Layouts

Achieved
Apr 19, 2020
Achievement
Responsive Theory

Responsive Layouts

Achieved
Apr 19, 2020
Achievement
Positioning Page Content

CSS Layout Basics

Achieved
Apr 19, 2020
Achievement
CSS Layout Project

CSS Layout Basics

Achieved
Apr 19, 2020
Achievement
Page Layout with the Float Property

CSS Layout Basics

Achieved
Apr 19, 2020
Achievement
Controlling Layout with CSS Display Modes

CSS Layout Basics

Achieved
Apr 19, 2020
Achievement
Getting Started with CSS Layout

CSS Layout Basics

Achieved
Apr 19, 2020
Achievement
Arrow Functions

JavaScript Functions

Achieved
Apr 19, 2020
Achievement
Pass Information Into Functions

JavaScript Functions

Achieved
Apr 19, 2020
Achievement
Create Reusable Code with Functions

JavaScript Functions

Achieved
Apr 19, 2020
Achievement
The Math Object

JavaScript Numbers

Achieved
Apr 19, 2020
Achievement
Working with Numbers

JavaScript Numbers

Achieved
Apr 19, 2020
Achievement
Making Decisions in Your Code with Conditional Statements

JavaScript Basics

Achieved
Apr 18, 2020
Achievement
Working With Strings

JavaScript Basics

Achieved
Apr 17, 2020
Achievement
Storing and Tracking Information with Variables

JavaScript Basics

Achieved
Apr 17, 2020
Achievement
Hello, JavaScript!

JavaScript Basics

Achieved
Apr 17, 2020
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Apr 16, 2020
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Apr 16, 2020
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Apr 16, 2020
Achievement
The Box Model

CSS Basics (2014)

Achieved
Apr 15, 2020
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Apr 15, 2020
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Apr 15, 2020
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Apr 15, 2020
Achievement
Going Further with HTML

HTML Basics

Achieved
Apr 15, 2020
Achievement
Images, Text and Links

HTML Basics

Achieved
Apr 15, 2020
Achievement
Getting Started With HTML

HTML Basics

Achieved
Apr 15, 2020
Achievement
Structuring Your Content

HTML Basics

Achieved
Apr 15, 2020
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Apr 15, 2020
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Apr 15, 2020
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Apr 15, 2020
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Apr 15, 2020
Achievement
Newbie

Achieved
Apr 15, 2020