dariuszkostrzewski

dariuszkostrzewski

Waterford, Ireland
Open to Work

9,409

Total Points

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Learn more about when and how points are earned.

Skills & Experience

  • Spoken Languages

    • English
    • Polish

111 Achievements

  • Achievement

    Introducing Props

    React Basics (2018)

    Achieved

    Sep 3, 2020

    Introducing Props
  • Achievement

    Thinking in Components

    React Basics (2018)

    Achieved

    Sep 1, 2020

    Thinking in Components
  • Achievement

    First Steps in React

    React Basics (2018)

    Achieved

    Sep 1, 2020

    First Steps in React
  • Achievement

    Modular Media Queries

    Modular CSS with Sass

    Achieved

    Aug 22, 2020

    Modular Media Queries
  • Achievement

    Sass Grid System

    Modular CSS with Sass

    Achieved

    Aug 22, 2020

    Sass Grid System
  • Achievement

    SMACSS and Sass

    Modular CSS with Sass

    Achieved

    Aug 20, 2020

    SMACSS and Sass
  • Achievement

    Sass and BEM

    Modular CSS with Sass

    Achieved

    Aug 20, 2020

    Sass and BEM
  • Achievement

    Getting Modular with Mixins and Functions

    Modular CSS with Sass

    Achieved

    Aug 18, 2020

    Getting Modular with Mixins and Functions
  • Achievement

    Lists, Code, Links and Images

    Markdown Basics

    Achieved

    Aug 14, 2020

    Lists, Code, Links and Images
  • Achievement

    Understanding Markdown

    Markdown Basics

    Achieved

    Aug 11, 2020

    Understanding Markdown
  • Achievement

    Debugging, Best Practices, and Production

    CSS to Sass

    Achieved

    Aug 11, 2020

    Debugging, Best Practices, and Production
  • Achievement

    Refactoring with Sass

    CSS to Sass

    Achieved

    Aug 10, 2020

    Refactoring with Sass
  • Achievement

    Installing Sass and Setting up the Project

    CSS to Sass

    Achieved

    Aug 6, 2020

    Installing Sass and Setting up the Project
  • Achievement

    Chrome DevTools Basics

    Website Optimization

    Achieved

    Jul 15, 2020

    Chrome DevTools Basics
  • Achievement

    Testing for Accessibility

    Web Accessibility Compliance

    Achieved

    Jul 14, 2020

    Testing for Accessibility
  • Achievement

    Mobile Accessibility

    Web Accessibility Compliance

    Achieved

    Jul 14, 2020

    Mobile Accessibility
  • Achievement

    Accessible UI Patterns

    Web Accessibility Compliance

    Achieved

    Jul 14, 2020

    Accessible UI Patterns
  • Achievement

    Semantic HTML and WAI-ARIA

    Web Accessibility Compliance

    Achieved

    Jul 14, 2020

    Semantic HTML and WAI-ARIA
  • Achievement

    WCAG 2.0 (and Other Standards)

    Web Accessibility Compliance

    Achieved

    Jul 14, 2020

    WCAG 2.0 (and Other Standards)
  • Achievement

    Access for Everybody

    Web Accessibility Compliance

    Achieved

    Jul 13, 2020

    Access for Everybody
  • Achievement

    Getters and Setters

    Object-Oriented JavaScript

    Achieved

    Jul 13, 2020

    Getters and Setters
  • Achievement

    Working with Classes in JavaScript

    Object-Oriented JavaScript

    Achieved

    Jul 10, 2020

    Working with Classes in JavaScript
  • Achievement

    Practicing Object Basics

    Practice Object Basics in JavaScript

    Achieved

    Jul 10, 2020

    Practicing Object Basics
  • Achievement

    Object Basics

    Object-Oriented JavaScript

    Achieved

    Jul 10, 2020

    Object Basics
  • Achievement

    Introduction to Object-Oriented JavaScript

    Object-Oriented JavaScript

    Achieved

    Jul 10, 2020

    Introduction to Object-Oriented JavaScript
  • Achievement

    Exploring Async/Await

    Asynchronous Programming with JavaScript

    Achieved

    Jul 3, 2020

    Exploring Async/Await
  • Achievement

    Understanding Promises

    Asynchronous Programming with JavaScript

    Achieved

    Jul 2, 2020

    Understanding Promises
  • Achievement

    Asynchronous JavaScript with Callbacks

    Asynchronous Programming with JavaScript

    Achieved

    Jul 2, 2020

    Asynchronous JavaScript with Callbacks
  • Achievement

    What is Asynchronous Programming?

    Asynchronous Programming with JavaScript

    Achieved

    Jul 1, 2020

    What is Asynchronous Programming?
  • Achievement

    Programming AJAX

    AJAX Basics

    Achieved

    Jun 30, 2020

    Programming AJAX
  • Achievement

    AJAX Concepts

    AJAX Basics

    Achieved

    Jun 30, 2020

    AJAX Concepts
  • Achievement

    Captioning Video

    HTML Video and Audio

    Achieved

    Jun 30, 2020

    Captioning Video
  • Achievement

    Media Basics

    HTML Video and Audio

    Achieved

    Jun 30, 2020

    Media Basics
  • Achievement

    Loop Through Objects

    JavaScript Objects

    Achieved

    Jun 30, 2020

    Loop Through Objects
  • Achievement

    Object Basics

    JavaScript Objects

    Achieved

    Jun 30, 2020

    Object Basics
  • Achievement

    Multidimensional Arrays

    JavaScript Arrays

    Achieved

    Jun 30, 2020

    Multidimensional Arrays
  • Achievement

    Loop Through Arrays

    JavaScript Arrays

    Achieved

    Jun 30, 2020

    Loop Through Arrays
  • Achievement

    Store Multiple Values in an Array

    JavaScript Arrays

    Achieved

    Jun 30, 2020

    Store Multiple Values in an Array
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Jun 30, 2020

    Structuring Tables
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Jun 30, 2020

    Table Basics
  • Achievement

    Working with 'for' Loops

    JavaScript Loops

    Achieved

    Jun 30, 2020

    Working with 'for' Loops
  • Achievement

    Simplify Repetitive Tasks with Loops

    JavaScript Loops

    Achieved

    Jun 29, 2020

    Simplify Repetitive Tasks with Loops
  • Achievement

    Combine and Minify Assets

    Introduction to Front End Performance Optimization

    Achieved

    Jun 29, 2020

    Combine and Minify Assets
  • Achievement

    Optimize Assets

    Introduction to Front End Performance Optimization

    Achieved

    Jun 29, 2020

    Optimize Assets
  • Achievement

    Measuring Performance

    Introduction to Front End Performance Optimization

    Achieved

    Jun 29, 2020

    Measuring Performance
  • Achievement

    Planning for Performance

    Introduction to Front End Performance Optimization

    Achieved

    Jun 29, 2020

    Planning for Performance
  • Achievement

    Building Forms With Bootstrap

    Bootstrap Basics

    Achieved

    Jun 29, 2020

    Building Forms With Bootstrap
  • Achievement

    Using Bootstrap Components

    Bootstrap Basics

    Achieved

    Jun 29, 2020

    Using Bootstrap Components
  • Achievement

    Responsive Layouts With the Bootstrap Grid

    Bootstrap Basics

    Achieved

    Jun 27, 2020

    Responsive Layouts With the Bootstrap Grid
  • Achievement

    Getting to Know Bootstrap 4

    Bootstrap Basics

    Achieved

    Jun 27, 2020

    Getting to Know Bootstrap 4
  • Achievement

    Defining Variables With let and const

    Getting Started With ES2015

    Achieved

    Jun 27, 2020

    Defining Variables With let and const
  • Achievement

    Create Function Using Arrow Syntax

    Getting Started With ES2015

    Achieved

    Jun 27, 2020

    Create Function Using Arrow Syntax
  • Achievement

    Traversing the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Jun 26, 2020

    Traversing the DOM
  • Achievement

    Responding to User Interaction

    Interacting with the DOM

    Achieved

    Jun 22, 2020

    Responding to User Interaction
  • Achievement

    Making Changes to the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Jun 17, 2020

    Making Changes to the DOM
  • Achievement

    Getting a Handle on the DOM

    JavaScript and the DOM (Retiring)

    Achieved

    Jun 12, 2020

    Getting a Handle on the DOM
  • Achievement

    The Browser Environment

    JavaScript and the DOM (Retiring)

    Achieved

    Jun 12, 2020

    The Browser Environment
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Jun 12, 2020

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Jun 11, 2020

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Jun 9, 2020

    Selectors - Beyond the Basics
  • Achievement

    Arrow Functions

    JavaScript Functions

    Achieved

    Jun 9, 2020

    Arrow Functions
  • Achievement

    Pass Information Into Functions

    JavaScript Functions

    Achieved

    Jun 8, 2020

    Pass Information Into Functions
  • Achievement

    Create Reusable Code with Functions

    JavaScript Functions

    Achieved

    Jun 8, 2020

    Create Reusable Code with Functions
  • Achievement

    The Math Object

    JavaScript Numbers

    Achieved

    Jun 8, 2020

    The Math Object
  • Achievement

    Working with Numbers

    JavaScript Numbers

    Achieved

    Jun 8, 2020

    Working with Numbers
  • Achievement

    Making Decisions in Your Code with Conditional Statements

    JavaScript Basics

    Achieved

    May 27, 2020

    Making Decisions in Your Code with Conditional Statements
  • Achievement

    Using Template Literals

    Getting Started With ES2015

    Achieved

    May 26, 2020

    Using Template Literals
  • Achievement

    Working With Strings

    JavaScript Basics

    Achieved

    May 25, 2020

    Working With Strings
  • Achievement

    Storing and Tracking Information with Variables

    JavaScript Basics

    Achieved

    May 24, 2020

    Storing and Tracking Information with Variables
  • Achievement

    Hello, JavaScript!

    JavaScript Basics

    Achieved

    May 24, 2020

    Hello, JavaScript!
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    May 21, 2020

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Feb 8, 2020

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Feb 3, 2020

    JavaScript Loops
  • Achievement

    GitHub and Other Remote Repositories

    Introduction to Git

    Achieved

    Feb 3, 2020

    GitHub and Other Remote Repositories
  • Achievement

    Managing Committed Files

    Introduction to Git

    Achieved

    Jan 30, 2020

    Managing Committed Files
  • Achievement

    First Commits

    Introduction to Git

    Achieved

    Jan 21, 2020

    First Commits
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Jan 14, 2020

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Jan 6, 2020

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Jan 6, 2020

    Form Basics
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Jan 6, 2020

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Dec 16, 2019

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Dec 13, 2019

    Understanding Flexbox
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Dec 12, 2019

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Dec 12, 2019

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Dec 12, 2019

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Dec 9, 2019

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Dec 6, 2019

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Dec 3, 2019

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Dec 2, 2019

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Dec 2, 2019

    Getting Started with CSS Layout
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Nov 18, 2019

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Oct 19, 2019

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Sep 30, 2019

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Sep 23, 2019

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Sep 15, 2019

    Introducing JavaScript
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Aug 18, 2019

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Jul 29, 2019

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Jul 5, 2019

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Jun 18, 2019

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Jun 3, 2019

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    May 23, 2019

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    May 20, 2019

    Getting Started with CSS
  • Achievement

    Going Further with HTML

    HTML Basics

    Achieved

    May 8, 2019

    Going Further with HTML
  • Achievement

    Images, Text and Links

    HTML Basics

    Achieved

    May 6, 2019

    Images, Text and Links
  • Achievement

    Structuring Your Content

    HTML Basics

    Achieved

    May 3, 2019

    Structuring Your Content
  • Achievement

    Getting Started With HTML

    HTML Basics

    Achieved

    May 3, 2019

    Getting Started With HTML
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    May 2, 2019

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    May 1, 2019

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 30, 2019

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

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 29, 2019

    Getting Familiar with HTML and CSS
  • Achievement

    Newbie

    Achieved

    Apr 29, 2019

    Newbie