Alexander Lee

Alexander Lee

Great Neck, NY
Open to Work

5,964

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
    • Russian

78 Achievements

  • Achievement

    Properties

    Intermediate Swift

    Achieved

    Jul 25, 2018

    Properties
  • Achievement

    Getters and Setters

    Object-Oriented JavaScript

    Achieved

    Jul 15, 2018

    Getters and Setters
  • Achievement

    Working with Classes in JavaScript

    Object-Oriented JavaScript

    Achieved

    Jul 15, 2018

    Working with Classes in JavaScript
  • Achievement

    Object Basics

    Object-Oriented JavaScript

    Achieved

    Jul 14, 2018

    Object Basics
  • Achievement

    Introduction to Object-Oriented JavaScript

    Object-Oriented JavaScript

    Achieved

    Jul 14, 2018

    Introduction to Object-Oriented JavaScript
  • Achievement

    Create Function Using Arrow Syntax

    Getting Started With ES2015

    Achieved

    Jul 13, 2018

    Create Function Using Arrow Syntax
  • Achievement

    Using Template Literals

    Getting Started With ES2015

    Achieved

    Jul 12, 2018

    Using Template Literals
  • Achievement

    Defining Variables With let and const

    Getting Started With ES2015

    Achieved

    Jul 12, 2018

    Defining Variables With let and const
  • Achievement

    Component Lifecycle

    React Basics (retired)

    Achieved

    May 4, 2018

    Component Lifecycle
  • Achievement

    Designing Dataflow

    React Basics (retired)

    Achieved

    May 4, 2018

    Designing Dataflow
  • Achievement

    Stateful Components

    React Basics (retired)

    Achieved

    May 2, 2018

    Stateful Components
  • Achievement

    Thinking in Components

    React Basics (retired)

    Achieved

    May 2, 2018

    Thinking in Components
  • Achievement

    First Steps in React

    React Basics (retired)

    Achieved

    May 2, 2018

    First Steps in React
  • Achievement

    Protocol Basics

    Protocols in Swift

    Achieved

    Dec 18, 2016

    Protocol Basics
  • Achievement

    Objects and Optionals

    Enumerations and Optionals in Swift

    Achieved

    Dec 14, 2016

    Objects and Optionals
  • Achievement

    Introduction to Optionals

    Enumerations and Optionals in Swift

    Achieved

    Dec 7, 2016

    Introduction to Optionals
  • Achievement

    Introduction to Enumerations

    Enumerations and Optionals in Swift

    Achieved

    Dec 6, 2016

    Introduction to Enumerations
  • Achievement

    Intro to Unit Testing 2

    Unit Testing in iOS

    Achieved

    Dec 5, 2016

    Intro to Unit Testing 2
  • Achievement

    Introduction to Unit Testing

    Unit Testing in iOS

    Achieved

    Dec 4, 2016

    Introduction to Unit Testing
  • Achievement

    Running Apps on a Device

    Build a Simple iPhone App with Swift

    Achieved

    Nov 29, 2016

    Running Apps on a Device
  • Achievement

    Improving Our User Interface

    Build a Simple iPhone App with Swift

    Achieved

    Nov 29, 2016

    Improving Our User Interface
  • Achievement

    Structs As Data Models

    Build a Simple iPhone App with Swift

    Achieved

    Nov 29, 2016

    Structs As Data Models
  • Achievement

    View Controllers and Views

    Build a Simple iPhone App with Swift

    Achieved

    Nov 29, 2016

    View Controllers and Views
  • Achievement

    Getting Started with iOS Development

    Build a Simple iPhone App with Swift

    Achieved

    Nov 29, 2016

    Getting Started with iOS Development
  • Achievement

    Differentiating Between Objects

    Object-Oriented Swift

    Achieved

    Nov 28, 2016

    Differentiating Between Objects
  • Achievement

    Class Inheritance

    Object-Oriented Swift

    Achieved

    Nov 28, 2016

    Class Inheritance
  • Achievement

    Classes in Swift

    Object-Oriented Swift

    Achieved

    Nov 28, 2016

    Classes in Swift
  • Achievement

    Complex Data Structures

    Object-Oriented Swift

    Achieved

    Nov 28, 2016

    Complex Data Structures
  • Achievement

    Adding Power to Functions

    Functions in Swift

    Achieved

    Nov 27, 2016

    Adding Power to Functions
  • Achievement

    Functions in Swift

    Functions in Swift

    Achieved

    Nov 27, 2016

    Functions in Swift
  • Achievement

    Control Flow With Conditional Statements

    Swift Collections and Control Flow

    Achieved

    Nov 27, 2016

    Control Flow With Conditional Statements
  • Achievement

    Control Flow With Loops

    Swift Collections and Control Flow

    Achieved

    Nov 26, 2016

    Control Flow With Loops
  • Achievement

    Dictionaries in Swift

    Swift Collections and Control Flow

    Achieved

    Nov 26, 2016

    Dictionaries in Swift
  • Achievement

    Introduction to Collections

    Swift Collections and Control Flow

    Achieved

    Nov 26, 2016

    Introduction to Collections
  • Achievement

    Swift Operators

    Swift Basics

    Achieved

    Nov 26, 2016

    Swift Operators
  • Achievement

    Swift Types

    Swift Basics

    Achieved

    Nov 26, 2016

    Swift Types
  • Achievement

    An Introduction to Swift Programming

    Swift Basics

    Achieved

    Nov 26, 2016

    An Introduction to Swift Programming
  • Achievement

    What Are Design Patterns?

    iOS Design Patterns

    Achieved

    Feb 6, 2016

    What Are Design Patterns?
  • Achievement

    Foundation Framework

    Objective-C Basics (Retired)

    Achieved

    Jan 18, 2016

    Foundation Framework
  • Achievement

    Introduction to Objective-C

    Objective-C Basics (Retired)

    Achieved

    Jan 18, 2016

    Introduction to Objective-C
  • Achievement

    Functional Programming in C

    Objective-C Basics (Retired)

    Achieved

    Jan 17, 2016

    Functional Programming in C
  • Achievement

    Fundamentals of C

    Objective-C Basics (Retired)

    Achieved

    Jan 17, 2016

    Fundamentals of C
  • Achievement

    Cocoapods

    iOS Tools

    Achieved

    Jan 17, 2016

    Cocoapods
  • Achievement

    Pointers and Memory

    Objective-C Basics (Retired)

    Achieved

    Oct 24, 2015

    Pointers and Memory
  • Achievement

    Creating Flexible Objects with Protocols

    Swift Protocols

    Achieved

    Oct 11, 2015

    Creating Flexible Objects with Protocols
  • Achievement

    Protocols

    Swift Protocols

    Achieved

    Oct 11, 2015

    Protocols
  • Achievement

    Simple Data Structures

    Build a Weather App with Swift

    Achieved

    Oct 11, 2015

    Simple Data Structures
  • Achievement

    Closures in iOS

    Swift Closures

    Achieved

    Oct 5, 2015

    Closures in iOS
  • Achievement

    Closures and Closure Expressions

    Swift Closures

    Achieved

    Oct 4, 2015

    Closures and Closure Expressions
  • Achievement

    Functions as First Class Citizens

    Swift Closures

    Achieved

    Oct 2, 2015

    Functions as First Class Citizens
  • Achievement

    Refactoring Our Code (Swift)

    Build a Playlist Browser with Swift

    Achieved

    Oct 1, 2015

    Refactoring Our Code (Swift)
  • Achievement

    Building the Master and Detail Views (Swift)

    Build a Playlist Browser with Swift

    Achieved

    Sep 29, 2015

    Building the Master and Detail Views (Swift)
  • Achievement

    Building a Music Library and Playlists (Swift)

    Build a Playlist Browser with Swift

    Achieved

    Sep 27, 2015

    Building a Music Library and Playlists (Swift)
  • Achievement

    Using a Navigation Controller With Segues (Swift)

    Build a Playlist Browser with Swift

    Achieved

    Sep 27, 2015

    Using a Navigation Controller With Segues (Swift)
  • Achievement

    Working With Multiple View Controllers (Swift)

    Build a Playlist Browser with Swift

    Achieved

    Sep 27, 2015

    Working With Multiple View Controllers (Swift)
  • Achievement

    Deploying to a Device

    Build a Simple iPhone App with Swift

    Achieved

    Sep 27, 2015

    Deploying to a Device
  • Achievement

    Debugging Our App

    Build a Simple iPhone App with Swift

    Achieved

    Sep 23, 2015

    Debugging Our App
  • Achievement

    Improving Our User Interface

    Build a Simple iPhone App with Swift

    Achieved

    Sep 23, 2015

    Improving Our User Interface
  • Achievement

    Using a Data Model

    Build a Simple iPhone App with Swift

    Achieved

    Sep 23, 2015

    Using a Data Model
  • Achievement

    Views and View Controllers

    Build a Simple iPhone App with Swift

    Achieved

    Sep 22, 2015

    Views and View Controllers
  • Achievement

    Swift Value vs Reference Types

    Object-Oriented Swift

    Achieved

    Sep 22, 2015

    Swift Value vs Reference Types
  • Achievement

    Swift Properties

    Object-Oriented Swift

    Achieved

    Sep 22, 2015

    Swift Properties
  • Achievement

    Swift Inheritance

    Object-Oriented Swift

    Achieved

    Sep 22, 2015

    Swift Inheritance
  • Achievement

    Swift Classes and Objects

    Object-Oriented Swift

    Achieved

    Sep 22, 2015

    Swift Classes and Objects
  • Achievement

    Getting Started with Xcode

    Build a Simple iPhone App with Swift

    Achieved

    Sep 20, 2015

    Getting Started with Xcode
  • Achievement

    Swift Structs and their Methods

    Swift Enums and Structs

    Achieved

    Sep 20, 2015

    Swift Structs and their Methods
  • Achievement

    Swift Structs

    Swift Enums and Structs

    Achieved

    Sep 20, 2015

    Swift Structs
  • Achievement

    Swift Enums and their Methods

    Swift Enums and Structs

    Achieved

    Sep 20, 2015

    Swift Enums and their Methods
  • Achievement

    Swift Enums

    Swift Enums and Structs

    Achieved

    Sep 20, 2015

    Swift Enums
  • Achievement

    Swift Optionals

    Swift Functions and Optionals

    Achieved

    Sep 20, 2015

    Swift Optionals
  • Achievement

    Swift Parameters and Tuples

    Swift Functions and Optionals

    Achieved

    Sep 20, 2015

    Swift Parameters and Tuples
  • Achievement

    Swift Functions

    Swift Functions and Optionals

    Achieved

    Sep 20, 2015

    Swift Functions
  • Achievement

    Control Flow

    Swift Basics (retired)

    Achieved

    Sep 20, 2015

    Control Flow
  • Achievement

    Collections

    Swift Basics (retired)

    Achieved

    Sep 20, 2015

    Collections
  • Achievement

    Operators

    Swift Basics (retired)

    Achieved

    Sep 20, 2015

    Operators
  • Achievement

    Types

    Swift Basics (retired)

    Achieved

    Sep 20, 2015

    Types
  • Achievement

    Variables and Constants

    Swift Basics (retired)

    Achieved

    Sep 20, 2015

    Variables and Constants
  • Achievement

    Newbie

    Achieved

    Sep 20, 2015

    Newbie