🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

🤖 Level up your chatbot knowledge with our latest AI course.

Join our free community Discord server here!

Learn React with us!

Michał Borowiecki

Member Since May 13, 2017

Open to Work

14,097

Total Points

•
3,378

JavaScript

3378 pts
Achievements

0 pts
Forum
•
3,355

Python

3354 pts
Achievements

1 pts
Forum
•
1,922

CSS

1922 pts
Achievements

0 pts
Forum
•
1,491

HTML

1491 pts
Achievements

0 pts
Forum
•
1,440

Databases

1440 pts
Achievements

0 pts
Forum
•
1,224

Development Tools

1224 pts
Achievements

0 pts
Forum
•
207

Data Analysis

207 pts
Achievements

0 pts
Forum

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
- Polish

158 Achievements

Achievement
What Is Testing?

Python Testing

Achieved
Jun 5, 2019
Achievement
Gettin' CRUD-y With It

Using Databases in Python

Achieved
Jun 5, 2019
Achievement
Our Diary App

Using Databases in Python

Achieved
Jun 5, 2019
Achievement
Meet Peewee

Using Databases in Python

Achieved
Apr 24, 2019
Achievement
Python Regular Expressions

Regular Expressions in Python

Achieved
Apr 19, 2019
Achievement
Timezones

Dates and Times in Python (2014)

Achieved
Apr 18, 2019
Achievement
Math Quiz App

Dates and Times in Python (2014)

Achieved
Apr 17, 2019
Achievement
The Data Analysis Process

Data Analysis Basics

Achieved
Apr 17, 2019
Achievement
Getting to Know Your Data

Data Analysis Basics

Achieved
Apr 17, 2019
Achievement
Introducing Data Analysis

Data Analysis Basics

Achieved
Apr 17, 2019
Achievement
Dates and Times

Dates and Times in Python (2014)

Achieved
Apr 17, 2019
Achievement
Buggy Logs

Write Better Python

Achieved
Apr 17, 2019
Achievement
Cleaner Code

Write Better Python

Achieved
Apr 17, 2019
Achievement
Dice Roller

Object-Oriented Python

Achieved
Apr 17, 2019
Achievement
Python: Advanced Objects

Object-Oriented Python

Achieved
Apr 16, 2019
Achievement
Python: Inheritance

Object-Oriented Python

Achieved
Apr 16, 2019
Achievement
Python: Instant Objects

Object-Oriented Python

Achieved
Apr 16, 2019
Achievement
Dungeon Game 2

Python Collections (2016, retired 2019)

Achieved
Apr 15, 2019
Achievement
Python Sets

Python Collections (2016, retired 2019)

Achieved
Apr 15, 2019
Achievement
Python Tuples

Python Collections (2016, retired 2019)

Achieved
Apr 12, 2019
Achievement
Python Dictionaries

Python Collections (2016, retired 2019)

Achieved
Apr 12, 2019
Achievement
Python Slices

Python Collections (2016, retired 2019)

Achieved
Apr 11, 2019
Achievement
Python Lists

Python Collections (2016, retired 2019)

Achieved
Apr 9, 2019
Achievement
Build an Application

Introducing Lists

Achieved
Apr 9, 2019
Achievement
Using Lists

Introducing Lists

Achieved
Apr 5, 2019
Achievement
Meet Lists

Introducing Lists

Achieved
Apr 5, 2019
Achievement
All Together Now

Python Basics

Achieved
Apr 4, 2019
Achievement
Functions and Looping

Python Basics

Achieved
Apr 4, 2019
Achievement
Types and Branching

Python Basics

Achieved
Apr 2, 2019
Achievement
Meet Python

Python Basics

Achieved
Apr 2, 2019
Achievement
Day 3: Getting Creative

SQL Reporting by Example

Achieved
Apr 1, 2019
Achievement
Day 2: Advanced Selecting

SQL Reporting by Example

Achieved
Mar 28, 2019
Achievement
Day 1: Joining Tables

SQL Reporting by Example

Achieved
Mar 28, 2019
Achievement
Orientation: Selecting Data

SQL Reporting by Example

Achieved
Mar 28, 2019
Achievement
Subqueries

Querying Relational Databases

Achieved
Jun 3, 2018
Achievement
Set Operations

Querying Relational Databases

Achieved
Jun 3, 2018
Achievement
Joining Table Data with SQL

Querying Relational Databases

Achieved
May 30, 2018
Achievement
Table Relationships

Querying Relational Databases

Achieved
May 30, 2018
Achievement
Database Keys

Querying Relational Databases

Achieved
May 30, 2018
Achievement
Database Normalization

Querying Relational Databases

Achieved
May 30, 2018
Achievement
Date and Time Functions

Reporting with SQL

Achieved
May 29, 2018
Achievement
Aggregate and Numeric Functions

Reporting with SQL

Achieved
May 29, 2018
Achievement
Working with Text

Reporting with SQL

Achieved
May 29, 2018
Achievement
Ordering, Limiting and Paging Results

Reporting with SQL

Achieved
May 29, 2018
Achievement
Handling Errors When Manipulating Data

Modifying Data with SQL

Achieved
May 28, 2018
Achievement
Deleting Data from a Database

Modifying Data with SQL

Achieved
May 28, 2018
Achievement
Updating Data in a Database

Modifying Data with SQL

Achieved
May 28, 2018
Achievement
Adding Data to a Database

Modifying Data with SQL

Achieved
May 28, 2018
Achievement
Big Data at Netflix

Introduction to Big Data

Achieved
May 28, 2018
Achievement
Where and How Big Data Is Used

Introduction to Big Data

Achieved
May 28, 2018
Achievement
What is Big Data

Introduction to Big Data

Achieved
May 28, 2018
Achievement
Finding the Data You Want

SQL Basics

Achieved
May 28, 2018
Achievement
Letter Game App

Python Basics (2015)

Achieved
Dec 21, 2017
Achievement
Getting Data from a Database

SQL Basics

Achieved
Dec 20, 2017
Achievement
Data, Databases and SQL

SQL Basics

Achieved
Dec 20, 2017
Achievement
Number Game App

Python Basics (2015)

Achieved
Dec 20, 2017
Achievement
Shopping List App

Python Basics (2015)

Achieved
Dec 18, 2017
Achievement
Logic in Python

Python Basics (2015)

Achieved
Dec 16, 2017
Achievement
Python Data Types

Python Basics (2015)

Achieved
Dec 13, 2017
Achievement
Python For Beginners

Python Basics (2015)

Achieved
Dec 12, 2017
Achievement
Improving the Application Code

DOM Scripting By Example

Achieved
Dec 12, 2017
Achievement
Editing and Filtering Names

DOM Scripting By Example

Achieved
Dec 6, 2017
Achievement
Adding and Removing Names

DOM Scripting By Example

Achieved
Dec 3, 2017
Achievement
Traversing the DOM

JavaScript and the DOM (Retiring)

Achieved
Nov 26, 2017
Achievement
Responding to User Interaction

Interacting with the DOM

Achieved
Nov 25, 2017
Achievement
Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achieved
Nov 25, 2017
Achievement
Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achieved
Nov 22, 2017
Achievement
The Browser Environment

JavaScript and the DOM (Retiring)

Achieved
Nov 22, 2017
Achievement
Create Function Using Arrow Syntax

Getting Started With ES2015

Achieved
Nov 20, 2017
Achievement
Using Template Literals

Getting Started With ES2015

Achieved
Nov 20, 2017
Achievement
Defining Variables With let and const

Getting Started With ES2015

Achieved
Nov 20, 2017
Achievement
Finishing the Game

Introducing JavaScript

Achieved
Nov 19, 2017
Achievement
Introducing JavaScript

Introducing JavaScript

Achieved
Nov 19, 2017
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Nov 15, 2017
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Nov 15, 2017
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Nov 15, 2017
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Nov 14, 2017
Achievement
Workflows

Git Basics

Achieved
Nov 14, 2017
Achievement
Working With Remote Repositories

Git Basics

Achieved
Nov 14, 2017
Achievement
Merging

Git Basics

Achieved
Nov 12, 2017
Achievement
Branches

Git Basics

Achieved
Nov 12, 2017
Achievement
Getting Started With Git

Git Basics

Achieved
Nov 12, 2017
Achievement
Why Version Control Matters

Git Basics

Achieved
Nov 8, 2017
Achievement
Installing Programs

Console Foundations

Achieved
Nov 8, 2017
Achievement
Environment and Redirection

Console Foundations

Achieved
Nov 8, 2017
Achievement
Console Processes

Console Foundations

Achieved
Nov 6, 2017
Achievement
Console Users and Permission

Console Foundations

Achieved
Nov 5, 2017
Achievement
Moving Around in the Console

Console Foundations

Achieved
Nov 5, 2017
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Nov 4, 2017
Achievement
Web Apps

Accessibility

Achieved
Oct 31, 2017
Achievement
Websites

Accessibility

Achieved
Oct 31, 2017
Achievement
Introduction

Accessibility

Achieved
Oct 31, 2017
Achievement
Quiz Practice Project

Object-Oriented JavaScript (2015)

Achieved
Oct 29, 2017
Achievement
Prototypal Inheritance

Object-Oriented JavaScript (2015)

Achieved
Oct 26, 2017
Achievement
Constructor Functions & Prototypes

Object-Oriented JavaScript (2015)

Achieved
Oct 26, 2017
Achievement
Introduction to Methods

Object-Oriented JavaScript (2015)

Achieved
Oct 25, 2017
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Oct 24, 2017
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Oct 24, 2017
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Oct 22, 2017
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Oct 19, 2017
Achievement
Captioning Video

HTML Video and Audio

Achieved
Oct 17, 2017
Achievement
Media Basics

HTML Video and Audio

Achieved
Oct 17, 2017
Achievement
Structuring Tables

HTML Tables

Achieved
Oct 17, 2017
Achievement
Table Basics

HTML Tables

Achieved
Oct 17, 2017
Achievement
Building Forms with Bootstrap

Bootstrap 4 Basics (Retired)

Achieved
Oct 16, 2017
Achievement
Using Bootstrap Components

Bootstrap 4 Basics (Retired)

Achieved
Oct 16, 2017
Achievement
Responsive Layouts with the Bootstrap Grid

Bootstrap 4 Basics (Retired)

Achieved
Oct 16, 2017
Achievement
Getting to Know Bootstrap 4

Bootstrap 4 Basics (Retired)

Achieved
Oct 16, 2017
Achievement
Creating a Simple Drawing Application

jQuery Basics (2014)

Achieved
Oct 14, 2017
Achievement
Creating a Password Confirmation Form

jQuery Basics (2014)

Achieved
Oct 14, 2017
Achievement
Creating a Mobile Drop Down Menu

jQuery Basics (2014)

Achieved
Oct 12, 2017
Achievement
Creating a Simple Lightbox

jQuery Basics (2014)

Achieved
Oct 11, 2017
Achievement
Creating a Spoiler Revealer

jQuery Basics (2014)

Achieved
Oct 10, 2017
Achievement
Introduction to jQuery

jQuery Basics (2014)

Achieved
Oct 8, 2017
Achievement
Advanced Selectors

CSS Selectors

Achieved
Oct 7, 2017
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Oct 3, 2017
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Jul 9, 2017
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Jul 2, 2017
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Jun 18, 2017
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Jun 17, 2017
Achievement
Choosing Options

HTML Forms

Achieved
Jun 15, 2017
Achievement
Organizing Forms

HTML Forms

Achieved
Jun 13, 2017
Achievement
Form Basics

HTML Forms

Achieved
Jun 13, 2017
Achievement
Building a Layout with Flexbox

CSS Flexbox Layout

Achieved
Jun 13, 2017
Achievement
Flexbox Properties

CSS Flexbox Layout

Achieved
Jun 12, 2017
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Jun 11, 2017
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Jun 11, 2017
Achievement
Media Queries

Responsive Layouts

Achieved
Jun 11, 2017
Achievement
Responsive Theory

Responsive Layouts

Achieved
Jun 10, 2017
Achievement
Positioning Page Content

CSS Layout Basics

Achieved
Jun 10, 2017
Achievement
CSS Layout Project

CSS Layout Basics

Achieved
Jun 10, 2017
Achievement
Page Layout with the Float Property

CSS Layout Basics

Achieved
Jun 6, 2017
Achievement
Controlling Layout with CSS Display Modes

CSS Layout Basics

Achieved
Jun 5, 2017
Achievement
Getting Started with CSS Layout

CSS Layout Basics

Achieved
May 29, 2017
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
May 28, 2017
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
May 28, 2017
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
May 27, 2017
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
May 25, 2017
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
May 23, 2017
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
May 21, 2017
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
May 21, 2017
Achievement
Basic Layout

CSS Basics (2014)

Achieved
May 21, 2017
Achievement
The Box Model

CSS Basics (2014)

Achieved
May 21, 2017
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
May 20, 2017
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
May 20, 2017
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
May 19, 2017
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
May 19, 2017
Achievement
Sharing a Website

How to Make a Website

Achieved
May 19, 2017
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
May 19, 2017
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
May 17, 2017
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
May 17, 2017
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
May 16, 2017
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
May 15, 2017
Achievement
Creating HTML Content

How to Make a Website

Achieved
May 15, 2017
Achievement
HTML First

How to Make a Website

Achieved
May 14, 2017
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
May 13, 2017
Achievement
Welcome to the Treehouse Club

Treehouse Club: HTML

Achieved
May 13, 2017
Achievement
Newbie

Achieved
May 13, 2017