Serge Kovalenko

Serge Kovalenko

Member Since August 24, 2016

9,526

Total Points

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103 Achievements

  • Achievement

    Emulating Built-ins

    Basic Object-Oriented Python

    Achieved

    Jul 22, 2021

    Emulating Built-ins
  • Achievement

    Welcome to OOP

    Basic Object-Oriented Python

    Achieved

    Jul 19, 2021

    Welcome to OOP
  • Achievement

    Practice Functions

    Practice Creating and Using Functions in Python

    Achieved

    Jul 16, 2021

    Practice Functions
  • Achievement

    Getting Started with Java

    Java Basics

    Achieved

    Jun 21, 2021

    Getting Started with Java
  • Achievement

    Understanding jQuery Events and DOM Traversal (2017)

    jQuery Basics

    Achieved

    Apr 28, 2019

    Understanding jQuery Events and DOM Traversal (2017)
  • Achievement

    Introducing jQuery (2017)

    jQuery Basics

    Achieved

    Apr 27, 2019

    Introducing jQuery (2017)
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Apr 25, 2019

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Apr 22, 2019

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Apr 21, 2019

    Selectors - Beyond the Basics
  • Achievement

    Go Concurrency Overview

    Go Language Overview

    Achieved

    Apr 20, 2019

    Go Concurrency Overview
  • Achievement

    Go Custom Types Overview

    Go Language Overview

    Achieved

    Apr 20, 2019

    Go Custom Types Overview
  • Achievement

    Go Data Structures Overview

    Go Language Overview

    Achieved

    Apr 13, 2019

    Go Data Structures Overview
  • Achievement

    Go Flow Control Overview

    Go Language Overview

    Achieved

    Apr 11, 2019

    Go Flow Control Overview
  • Achievement

    Go Syntax Overview

    Go Language Overview

    Achieved

    Apr 9, 2019

    Go Syntax Overview
  • Achievement

    Traversing the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Apr 7, 2019

    Traversing the DOM
  • Achievement

    Responding to User Interaction

    Interacting with the DOM

    Achieved

    Apr 6, 2019

    Responding to User Interaction
  • Achievement

    Making Changes to the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Apr 6, 2019

    Making Changes to the DOM
  • Achievement

    Getting a Handle on the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Apr 4, 2019

    Getting a Handle on the DOM
  • Achievement

    The Browser Environment

    JavaScript and the DOM (Retiring)

    Achieved

    Mar 30, 2019

    The Browser Environment
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Mar 30, 2019

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Mar 30, 2019

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Mar 29, 2019

    Understanding Flexbox
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Mar 28, 2019

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Mar 28, 2019

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Mar 25, 2019

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Mar 24, 2019

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Mar 24, 2019

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Mar 24, 2019

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Mar 18, 2019

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Mar 17, 2019

    Getting Started with CSS Layout
  • Achievement

    Create Function Using Arrow Syntax

    Getting Started With ES2015

    Achieved

    Mar 16, 2019

    Create Function Using Arrow Syntax
  • Achievement

    Using Template Literals

    Getting Started With ES2015

    Achieved

    Mar 16, 2019

    Using Template Literals
  • Achievement

    Defining Variables With let and const

    Getting Started With ES2015

    Achieved

    Mar 16, 2019

    Defining Variables With let and const
  • Achievement

    JavaScript Tools and Workflows

    The Landscape of JavaScript

    Achieved

    Mar 9, 2019

    JavaScript Tools and Workflows
  • Achievement

    JavaScript is Everywhere

    The Landscape of JavaScript

    Achieved

    Mar 9, 2019

    JavaScript is Everywhere
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Mar 7, 2019

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Mar 3, 2019

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Feb 18, 2019

    JavaScript Loops
  • Achievement

    Finishing the Game

    Introducing JavaScript

    Achieved

    Feb 17, 2019

    Finishing the Game
  • Achievement

    Introducing JavaScript

    Introducing JavaScript

    Achieved

    Feb 16, 2019

    Introducing JavaScript
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Feb 9, 2019

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Feb 8, 2019

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Jan 27, 2019

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Jan 26, 2019

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Jan 20, 2019

    Introducing JavaScript
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Jan 18, 2019

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Jan 18, 2019

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Jan 12, 2019

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Jan 8, 2019

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Jan 4, 2019

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Jan 1, 2019

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Dec 31, 2018

    Getting Started with CSS
  • Achievement

    Creating an SVG

    SVG Basics

    Achieved

    Dec 31, 2018

    Creating an SVG
  • Achievement

    Introduction to SVG

    SVG Basics

    Achieved

    Dec 30, 2018

    Introduction to SVG
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Dec 30, 2018

    Structuring Tables
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Dec 30, 2018

    Table Basics
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Dec 29, 2018

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Dec 29, 2018

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Dec 28, 2018

    Form Basics
  • Achievement

    Going Further with HTML

    HTML Basics

    Achieved

    Dec 26, 2018

    Going Further with HTML
  • Achievement

    Images, Text and Links

    HTML Basics

    Achieved

    Dec 26, 2018

    Images, Text and Links
  • Achievement

    Structuring Your Content

    HTML Basics

    Achieved

    Dec 25, 2018

    Structuring Your Content
  • Achievement

    Getting Started With HTML

    HTML Basics

    Achieved

    Dec 25, 2018

    Getting Started With HTML
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    Dec 24, 2018

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Dec 23, 2018

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    Dec 23, 2018

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

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Dec 23, 2018

    Getting Familiar with HTML and CSS
  • Achievement

    Buggy Logs

    Write Better Python

    Achieved

    Mar 10, 2018

    Buggy Logs
  • Achievement

    Cleaner Code

    Write Better Python

    Achieved

    Mar 10, 2018

    Cleaner Code
  • Achievement

    Dungeon Game 2

    Python Collections (2016, retired 2019)

    Achieved

    Jun 15, 2017

    Dungeon Game 2
  • Achievement

    Python Sets

    Python Collections (2016, retired 2019)

    Achieved

    Jun 15, 2017

    Python Sets
  • Achievement

    Python Tuples

    Python Collections (2016, retired 2019)

    Achieved

    Jun 14, 2017

    Python Tuples
  • Achievement

    Python Dictionaries

    Python Collections (2016, retired 2019)

    Achieved

    Jun 12, 2017

    Python Dictionaries
  • Achievement

    Python Slices

    Python Collections (2016, retired 2019)

    Achieved

    Jun 10, 2017

    Python Slices
  • Achievement

    Python Lists

    Python Collections (2016, retired 2019)

    Achieved

    Jun 6, 2017

    Python Lists
  • Achievement

    Letter Game App

    Python Basics (2015)

    Achieved

    May 28, 2017

    Letter Game App
  • Achievement

    Number Game App

    Python Basics (2015)

    Achieved

    May 27, 2017

    Number Game App
  • Achievement

    Shopping List App

    Python Basics (2015)

    Achieved

    May 27, 2017

    Shopping List App
  • Achievement

    Logic in Python

    Python Basics (2015)

    Achieved

    May 26, 2017

    Logic in Python
  • Achievement

    Python Data Types

    Python Basics (2015)

    Achieved

    May 26, 2017

    Python Data Types
  • Achievement

    Python For Beginners

    Python Basics (2015)

    Achieved

    May 25, 2017

    Python For Beginners
  • Achievement

    Blocks Practice

    Ruby Blocks

    Achieved

    Sep 3, 2016

    Blocks Practice
  • Achievement

    Working With Blocks

    Ruby Blocks

    Achieved

    Sep 2, 2016

    Working With Blocks
  • Achievement

    Ruby Blocks

    Ruby Blocks

    Achieved

    Sep 1, 2016

    Ruby Blocks
  • Achievement

    Build a Simple Todo List Program

    Ruby Booleans

    Achieved

    Aug 31, 2016

    Build a Simple Todo List Program
  • Achievement

    Ruby Booleans

    Ruby Booleans

    Achieved

    Aug 30, 2016

    Ruby Booleans
  • Achievement

    Build a Bank Account Class

    Ruby Objects and Classes

    Achieved

    Aug 30, 2016

    Build a Bank Account Class
  • Achievement

    Ruby Variables and Methods

    Ruby Objects and Classes

    Achieved

    Aug 29, 2016

    Ruby Variables and Methods
  • Achievement

    Ruby Objects and Classes

    Ruby Objects and Classes

    Achieved

    Aug 29, 2016

    Ruby Objects and Classes
  • Achievement

    Build a Simple Contact List

    Ruby Loops

    Achieved

    Aug 29, 2016

    Build a Simple Contact List
  • Achievement

    Ruby Iteration

    Ruby Loops

    Achieved

    Aug 28, 2016

    Ruby Iteration
  • Achievement

    Ruby Loops

    Ruby Loops

    Achieved

    Aug 28, 2016

    Ruby Loops
  • Achievement

    Build a Grocery List Program

    Ruby Collections

    Achieved

    Aug 28, 2016

    Build a Grocery List Program
  • Achievement

    Ruby Hashes

    Ruby Collections

    Achieved

    Aug 28, 2016

    Ruby Hashes
  • Achievement

    Ruby Arrays

    Ruby Collections

    Achieved

    Aug 27, 2016

    Ruby Arrays
  • Achievement

    Ruby Logical Operators

    Ruby Operators and Control Structures

    Achieved

    Aug 27, 2016

    Ruby Logical Operators
  • Achievement

    Ruby Control Structures

    Ruby Operators and Control Structures

    Achieved

    Aug 26, 2016

    Ruby Control Structures
  • Achievement

    Ruby Operators

    Ruby Operators and Control Structures

    Achieved

    Aug 26, 2016

    Ruby Operators
  • Achievement

    Ruby Methods

    Ruby Basics (Retired)

    Achieved

    Aug 26, 2016

    Ruby Methods
  • Achievement

    Ruby Numbers (Ruby Basics)

    Ruby Basics (Retired)

    Achieved

    Aug 26, 2016

    Ruby Numbers (Ruby Basics)
  • Achievement

    Ruby Strings (Ruby Basics)

    Ruby Basics (Retired)

    Achieved

    Aug 25, 2016

    Ruby Strings (Ruby Basics)
  • Achievement

    How Ruby Works

    Ruby Basics (Retired)

    Achieved

    Aug 25, 2016

    How Ruby Works
  • Achievement

    Newbie

    Achieved

    Aug 24, 2016

    Newbie