Marcin Czachor

Marcin Czachor

Gdynia, Poland

9,641

Total Points

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116 Achievements

  • Achievement

    Measuring Performance

    Introduction to Front End Performance Optimization

    Achieved

    Feb 27, 2018

    Measuring Performance
  • Achievement

    Planning for Performance

    Introduction to Front End Performance Optimization

    Achieved

    Feb 27, 2018

    Planning for Performance
  • Achievement

    Going Further with Routing

    React Router 4 Basics

    Achieved

    Feb 17, 2018

    Going Further with Routing
  • Achievement

    Navigating, Nesting and Redirecting Routes

    React Router 4 Basics

    Achieved

    Feb 17, 2018

    Navigating, Nesting and Redirecting Routes
  • Achievement

    Getting Started with React Router

    React Router 4 Basics

    Achieved

    Feb 17, 2018

    Getting Started with React Router
  • Achievement

    Component Lifecycle

    React Basics (retired)

    Achieved

    Feb 17, 2018

    Component Lifecycle
  • Achievement

    Maintaining Secure Web Apps

    Introduction to Application Security

    Achieved

    Jan 27, 2018

    Maintaining Secure Web Apps
  • Achievement

    Protecting Data and Keeping Attackers Out

    Introduction to Application Security

    Achieved

    Jan 27, 2018

    Protecting Data and Keeping Attackers Out
  • Achievement

    Why Protect Your Web Apps

    Introduction to Application Security

    Achieved

    Jan 27, 2018

    Why Protect Your Web Apps
  • Achievement

    Refining the App

    React by Example

    Achieved

    Jan 20, 2018

    Refining the App
  • Achievement

    Building the Application

    React by Example

    Achieved

    Jan 20, 2018

    Building the Application
  • Achievement

    Setting up with Create React App

    React by Example

    Achieved

    Jan 18, 2018

    Setting up with Create React App
  • Achievement

    Introducing Unit Testing

    JavaScript Unit Testing

    Achieved

    Nov 17, 2017

    Introducing Unit Testing
  • Achievement

    Designing Dataflow

    React Basics (retired)

    Achieved

    Aug 17, 2017

    Designing Dataflow
  • Achievement

    Stateful Components

    React Basics (retired)

    Achieved

    Aug 11, 2017

    Stateful Components
  • Achievement

    Callbacks and the DOM

    Callback Functions in JavaScript

    Achieved

    Jul 20, 2017

    Callbacks and the DOM
  • Achievement

    Callbacks with Timers

    Callback Functions in JavaScript

    Achieved

    Jul 20, 2017

    Callbacks with Timers
  • Achievement

    Introduction to Callback Functions

    Callback Functions in JavaScript

    Achieved

    Jul 20, 2017

    Introduction to Callback Functions
  • Achievement

    Data, Databases and SQL

    SQL Basics

    Achieved

    Jul 8, 2017

    Data, Databases and SQL
  • Achievement

    Programming AJAX

    AJAX Basics (retiring)

    Achieved

    Jul 6, 2017

    Programming AJAX
  • Achievement

    Creating a Command Line Weather Application

    Node.js Basics 2017

    Achieved

    Jul 6, 2017

    Creating a Command Line Weather Application
  • Achievement

    Handling Errors in Node

    Node.js Basics 2017

    Achieved

    Jul 5, 2017

    Handling Errors in Node
  • Achievement

    Getting Data From an API With Node

    Node.js Basics 2017

    Achieved

    Jul 5, 2017

    Getting Data From an API With Node
  • Achievement

    Introduction to Node.js

    Node.js Basics 2017

    Achieved

    Jul 3, 2017

    Introduction to Node.js
  • Achievement

    Classes

    Introducing ES2015

    Achieved

    May 22, 2017

    Classes
  • Achievement

    Objects and New Collection Types

    Introducing ES2015

    Achieved

    May 22, 2017

    Objects and New Collection Types
  • Achievement

    The Cooler Parts of ES2015

    Introducing ES2015

    Achieved

    May 20, 2017

    The Cooler Parts of ES2015
  • Achievement

    AJAX Concepts

    AJAX Basics (retiring)

    Achieved

    May 4, 2017

    AJAX Concepts
  • Achievement

    Asset Optimization

    Front End Web Optimization Workflow

    Achieved

    Apr 30, 2017

    Asset Optimization
  • Achievement

    Why Web Performance Matters

    Front End Web Optimization Workflow

    Achieved

    Apr 20, 2017

    Why Web Performance Matters
  • Achievement

    Thinking in Components

    React Basics (retired)

    Achieved

    Mar 14, 2017

    Thinking in Components
  • Achievement

    First Steps in React

    React Basics (retired)

    Achieved

    Mar 14, 2017

    First Steps in React
  • Achievement

    JavaScript and the DOM

    Interactive Web Pages with JavaScript

    Achieved

    Feb 16, 2017

    JavaScript and the DOM
  • Achievement

    The Logo Sprint

    Logo Design Basics

    Achieved

    Feb 1, 2017

    The Logo Sprint
  • Achievement

    Logo Design 101

    Logo Design Basics

    Achieved

    Feb 1, 2017

    Logo Design 101
  • Achievement

    Quiz Practice Project

    Object-Oriented JavaScript (2015)

    Achieved

    Jan 24, 2017

    Quiz Practice Project
  • Achievement

    Prototypal Inheritance

    Object-Oriented JavaScript (2015)

    Achieved

    Jan 23, 2017

    Prototypal Inheritance
  • Achievement

    Constructor Functions & Prototypes

    Object-Oriented JavaScript (2015)

    Achieved

    Jan 23, 2017

    Constructor Functions & Prototypes
  • Achievement

    Introduction to Methods

    Object-Oriented JavaScript (2015)

    Achieved

    Jan 17, 2017

    Introduction to Methods
  • Achievement

    Improving the Application Code

    DOM Scripting By Example

    Achieved

    Jan 13, 2017

    Improving the Application Code
  • Achievement

    Editing and Filtering Names

    DOM Scripting By Example

    Achieved

    Jan 13, 2017

    Editing and Filtering Names
  • Achievement

    Adding and Removing Names

    DOM Scripting By Example

    Achieved

    Jan 12, 2017

    Adding and Removing Names
  • Achievement

    Hello, jQuery!

    Introduction to jQuery

    Achieved

    Jan 11, 2017

    Hello, jQuery!
  • Achievement

    Traversing the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Jan 10, 2017

    Traversing the DOM
  • Achievement

    Responding to User Interaction

    Interacting with the DOM

    Achieved

    Jan 8, 2017

    Responding to User Interaction
  • Achievement

    Making Changes to the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Jan 8, 2017

    Making Changes to the DOM
  • Achievement

    Getting a Handle on the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Jan 5, 2017

    Getting a Handle on the DOM
  • Achievement

    Adding 3D Effects with CSS

    CSS Transitions and Transforms

    Achieved

    Jan 2, 2017

    Adding 3D Effects with CSS
  • Achievement

    Getting Started with CSS Transforms

    CSS Transitions and Transforms

    Achieved

    Dec 28, 2016

    Getting Started with CSS Transforms
  • Achievement

    Transition Timing Functions and Delays

    CSS Transitions and Transforms

    Achieved

    Dec 27, 2016

    Transition Timing Functions and Delays
  • Achievement

    Getting Started with CSS Transitions

    CSS Transitions and Transforms

    Achieved

    Dec 27, 2016

    Getting Started with CSS Transitions
  • Achievement

    Building Forms with Bootstrap

    Bootstrap 4 Basics (Retired)

    Achieved

    Dec 25, 2016

    Building Forms with Bootstrap
  • Achievement

    Using Bootstrap Components

    Bootstrap 4 Basics (Retired)

    Achieved

    Dec 22, 2016

    Using Bootstrap Components
  • Achievement

    Responsive Layouts with the Bootstrap Grid

    Bootstrap 4 Basics (Retired)

    Achieved

    Dec 21, 2016

    Responsive Layouts with the Bootstrap Grid
  • Achievement

    Getting to Know Bootstrap 4

    Bootstrap 4 Basics (Retired)

    Achieved

    Dec 21, 2016

    Getting to Know Bootstrap 4
  • Achievement

    ES2015 Basics

    Introducing ES2015

    Achieved

    Dec 20, 2016

    ES2015 Basics
  • Achievement

    The Browser Environment

    JavaScript and the DOM (Retiring)

    Achieved

    Dec 19, 2016

    The Browser Environment
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Dec 19, 2016

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Dec 15, 2016

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Dec 13, 2016

    JavaScript Loops
  • Achievement

    Introduction to Design

    Design Foundations

    Achieved

    Dec 9, 2016

    Introduction to Design
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Dec 9, 2016

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Dec 9, 2016

    JavaScript Conditional Statements
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Dec 5, 2016

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Dec 3, 2016

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Dec 2, 2016

    Understanding Flexbox
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Nov 29, 2016

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Nov 27, 2016

    JavaScript Variables
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Nov 27, 2016

    Responsive Patterns
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Nov 26, 2016

    Introducing JavaScript
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Nov 26, 2016

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Nov 26, 2016

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Nov 26, 2016

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Nov 24, 2016

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Nov 23, 2016

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Nov 23, 2016

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Nov 23, 2016

    Getting Started with CSS Layout
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Nov 21, 2016

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Nov 21, 2016

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Nov 18, 2016

    Selectors - Beyond the Basics
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Nov 16, 2016

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Nov 16, 2016

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Nov 16, 2016

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Nov 16, 2016

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Nov 13, 2016

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Nov 12, 2016

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Nov 12, 2016

    Getting Started with CSS
  • Achievement

    Custom Media Players

    HTML Video and Audio (Retired)

    Achieved

    Nov 10, 2016

    Custom Media Players
  • Achievement

    Captioning Video

    HTML Video and Audio (Retired)

    Achieved

    Nov 10, 2016

    Captioning Video
  • Achievement

    Media Basics

    HTML Video and Audio (Retired)

    Achieved

    Nov 10, 2016

    Media Basics
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Nov 10, 2016

    Structuring Tables
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Nov 9, 2016

    Table Basics
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Nov 9, 2016

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Nov 8, 2016

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Nov 8, 2016

    Form Basics
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Nov 8, 2016

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Nov 7, 2016

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Nov 7, 2016

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Nov 7, 2016

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Nov 5, 2016

    Styling Web Pages and Navigation
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Nov 5, 2016

    Customizing Colors and Fonts
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Nov 4, 2016

    CSS: Cascading Style Sheets
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Nov 4, 2016

    Creating HTML Content
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Nov 4, 2016

    HTML First
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Nov 4, 2016

    Beginning HTML and CSS
  • Achievement

    MASH JavaScript

    Treehouse Club - MASH

    Achieved

    Nov 3, 2016

    MASH JavaScript
  • Achievement

    MASH CSS

    Treehouse Club - MASH

    Achieved

    Nov 3, 2016

    MASH CSS
  • Achievement

    MASH HTML

    Treehouse Club - MASH

    Achieved

    Nov 1, 2016

    MASH HTML
  • Achievement

    Treehouse Club - JavaScript

    Treehouse Club: JavaScript

    Achieved

    Oct 31, 2016

    Treehouse Club - JavaScript
  • Achievement

    Treehouse Club - CSS

    Treehouse Club: CSS

    Achieved

    Oct 30, 2016

    Treehouse Club - CSS
  • Achievement

    Welcome to the Treehouse Club

    Treehouse Club: HTML

    Achieved

    Oct 30, 2016

    Welcome to the Treehouse Club
  • Achievement

    WWW

    How the Web Works

    Achieved

    Oct 30, 2016

    WWW
  • Achievement

    The Internet

    How the Internet Works

    Achieved

    Oct 28, 2016

    The Internet
  • Achievement

    Computer Languages

    Computer Basics

    Achieved

    Oct 27, 2016

    Computer Languages
  • Achievement

    Computer Basics

    Computer Basics

    Achieved

    Oct 26, 2016

    Computer Basics
  • Achievement

    Newbie

    Achieved

    Oct 26, 2016

    Newbie