Ling Lei

Ling Lei

Member Since September 20, 2018

6,099

Total Points

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

Skills & Experience

  • Spoken Languages

    • English
    • 汉语

67 Achievements

  • Achievement

    The Browser Environment

    JavaScript and the DOM (Retiring)

    Achieved

    Jul 7, 2019

    The Browser Environment
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Jul 3, 2019

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Jun 30, 2019

    JavaScript Arrays
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Jun 30, 2019

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Jun 24, 2019

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Jun 23, 2019

    Form Basics
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Jun 19, 2019

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Jun 18, 2019

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Jun 17, 2019

    Understanding Flexbox
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Jun 10, 2019

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Jun 10, 2019

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Jun 9, 2019

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Jun 9, 2019

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Jun 9, 2019

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Jun 8, 2019

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Jun 5, 2019

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    May 5, 2019

    Getting Started with CSS Layout
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Apr 8, 2019

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Mar 30, 2019

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Mar 26, 2019

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Mar 15, 2019

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Mar 15, 2019

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Mar 11, 2019

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Feb 8, 2019

    Getting Started with CSS
  • Achievement

    Exploration

    Web Design Process

    Achieved

    Feb 5, 2019

    Exploration
  • Achievement

    Discovery

    Web Design Process

    Achieved

    Feb 5, 2019

    Discovery
  • Achievement

    Going Further with HTML

    HTML Basics

    Achieved

    Feb 4, 2019

    Going Further with HTML
  • Achievement

    Images, Text and Links

    HTML Basics

    Achieved

    Feb 4, 2019

    Images, Text and Links
  • Achievement

    Structuring Your Content

    HTML Basics

    Achieved

    Feb 2, 2019

    Structuring Your Content
  • Achievement

    Getting Started With HTML

    HTML Basics

    Achieved

    Feb 1, 2019

    Getting Started With HTML
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    Feb 1, 2019

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Jan 31, 2019

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    Jan 31, 2019

    HTML: The Structural Foundation of Web Pages and Applications
  • Achievement

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Jan 31, 2019

    Getting Familiar with HTML and CSS
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Jan 17, 2019

    JavaScript Loops
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Jan 15, 2019

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Jan 14, 2019

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Jan 13, 2019

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Jan 12, 2019

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Jan 11, 2019

    Introducing JavaScript
  • Achievement

    Finishing the Game

    Introducing JavaScript

    Achieved

    Jan 11, 2019

    Finishing the Game
  • Achievement

    Introducing JavaScript

    Introducing JavaScript

    Achieved

    Jan 11, 2019

    Introducing JavaScript
  • Achievement

    Store Inventory Using Modules

    Ruby Modules

    Achieved

    Nov 27, 2018

    Store Inventory Using Modules
  • Achievement

    Include and Extend

    Ruby Modules

    Achieved

    Nov 24, 2018

    Include and Extend
  • Achievement

    Ruby Core Modules

    Ruby Modules

    Achieved

    Nov 7, 2018

    Ruby Core Modules
  • Achievement

    Ruby Module Basics

    Ruby Modules

    Achieved

    Oct 16, 2018

    Ruby Module Basics
  • Achievement

    Input and Output

    Build an Address Book in Ruby

    Achieved

    Oct 5, 2018

    Input and Output
  • Achievement

    Search

    Build an Address Book in Ruby

    Achieved

    Oct 5, 2018

    Search
  • Achievement

    Ruby Class Design

    Build an Address Book in Ruby

    Achieved

    Oct 4, 2018

    Ruby Class Design
  • Achievement

    Blocks Practice

    Ruby Blocks

    Achieved

    Oct 4, 2018

    Blocks Practice
  • Achievement

    Working With Blocks

    Ruby Blocks

    Achieved

    Oct 3, 2018

    Working With Blocks
  • Achievement

    Ruby Blocks

    Ruby Blocks

    Achieved

    Oct 3, 2018

    Ruby Blocks
  • Achievement

    Build a Bank Account Class

    Ruby Objects and Classes

    Achieved

    Oct 3, 2018

    Build a Bank Account Class
  • Achievement

    Ruby Variables and Methods

    Ruby Objects and Classes

    Achieved

    Oct 2, 2018

    Ruby Variables and Methods
  • Achievement

    Ruby Objects and Classes

    Ruby Objects and Classes

    Achieved

    Oct 2, 2018

    Ruby Objects and Classes
  • Achievement

    Build a Simple Contact List

    Ruby Loops

    Achieved

    Sep 27, 2018

    Build a Simple Contact List
  • Achievement

    Ruby Iteration

    Ruby Loops

    Achieved

    Sep 27, 2018

    Ruby Iteration
  • Achievement

    Ruby Loops

    Ruby Loops

    Achieved

    Sep 26, 2018

    Ruby Loops
  • Achievement

    Build a Grocery List Program

    Ruby Collections

    Achieved

    Sep 25, 2018

    Build a Grocery List Program
  • Achievement

    Ruby Hashes

    Ruby Collections

    Achieved

    Sep 25, 2018

    Ruby Hashes
  • Achievement

    Ruby Arrays

    Ruby Collections

    Achieved

    Sep 24, 2018

    Ruby Arrays
  • Achievement

    Ruby Conditionals

    Ruby Basics

    Achieved

    Sep 24, 2018

    Ruby Conditionals
  • Achievement

    Ruby Numeric Types

    Ruby Basics

    Achieved

    Sep 22, 2018

    Ruby Numeric Types
  • Achievement

    Ruby Objects

    Ruby Basics

    Achieved

    Sep 22, 2018

    Ruby Objects
  • Achievement

    Ruby Strings and Escape Sequences

    Ruby Basics

    Achieved

    Sep 22, 2018

    Ruby Strings and Escape Sequences
  • Achievement

    Ruby Syntax

    Ruby Basics

    Achieved

    Sep 21, 2018

    Ruby Syntax
  • Achievement

    Newbie

    Achieved

    Sep 20, 2018

    Newbie