Christos Constantinides

Christos Constantinides

Cape Town, South Africa

9,605

Total Points

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

114 Achievements

  • Achievement

    Understanding Classes

    Object-Oriented PHP Basics

    Achieved

    May 26, 2016

    Understanding Classes
  • Achievement

    Why Object-Oriented Programming?

    Object-Oriented PHP Basics

    Achieved

    May 26, 2016

    Why Object-Oriented Programming?
  • Achievement

    PHP Properties & Methods

    Object-Oriented PHP Basics (Retired)

    Achieved

    May 18, 2016

    PHP Properties & Methods
  • Achievement

    PHP Objects and Classes

    Object-Oriented PHP Basics (Retired)

    Achieved

    May 18, 2016

    PHP Objects and Classes
  • Achievement

    PHPDB Stage 5: Search

    Integrating PHP with Databases

    Achieved

    May 17, 2016

    PHPDB Stage 5: Search
  • Achievement

    PHPDB Stage 4: Pagination with LIMITs

    Integrating PHP with Databases

    Achieved

    May 16, 2016

    PHPDB Stage 4: Pagination with LIMITs
  • Achievement

    PHPDB Stage 3: Using Relational Data

    Integrating PHP with Databases

    Achieved

    May 9, 2016

    PHPDB Stage 3: Using Relational Data
  • Achievement

    PHPDB Stage 2: Querying the Database with PHP

    Integrating PHP with Databases

    Achieved

    May 8, 2016

    PHPDB Stage 2: Querying the Database with PHP
  • Achievement

    PHPDB Stage 1: Databases and PHP

    Integrating PHP with Databases

    Achieved

    May 8, 2016

    PHPDB Stage 1: Databases and PHP
  • Achievement

    Finding the Data You Want

    SQL Basics

    Achieved

    May 4, 2016

    Finding the Data You Want
  • Achievement

    Getting Data from a Database

    SQL Basics

    Achieved

    May 4, 2016

    Getting Data from a Database
  • Achievement

    Data, Databases and SQL

    SQL Basics

    Achieved

    May 4, 2016

    Data, Databases and SQL
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    May 4, 2016

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    May 4, 2016

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    May 3, 2016

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

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    May 3, 2016

    Getting Familiar with HTML and CSS
  • Achievement

    PHP Email Form Errors

    Build a Basic PHP Website (2018)

    Achieved

    Apr 29, 2016

    PHP Email Form Errors
  • Achievement

    PHP Email Forms

    Build a Basic PHP Website (2018)

    Achieved

    Apr 27, 2016

    PHP Email Forms
  • Achievement

    PHP Inventory

    Build a Basic PHP Website (2018)

    Achieved

    Apr 15, 2016

    PHP Inventory
  • Achievement

    PHP Includes

    Build a Basic PHP Website (2018)

    Achieved

    Apr 12, 2016

    PHP Includes
  • Achievement

    PHP Internal Functions

    PHP Functions

    Achieved

    Apr 11, 2016

    PHP Internal Functions
  • Achievement

    PHP Returns & Closures

    PHP Functions

    Achieved

    Apr 11, 2016

    PHP Returns & Closures
  • Achievement

    PHP Functions Basics

    PHP Functions

    Achieved

    Apr 11, 2016

    PHP Functions Basics
  • Achievement

    PHP Loops

    PHP Basics (Retired)

    Achieved

    Apr 10, 2016

    PHP Loops
  • Achievement

    PHP Conditionals

    PHP Basics (Retired)

    Achieved

    Apr 10, 2016

    PHP Conditionals
  • Achievement

    PHP Datatypes

    PHP Basics (Retired)

    Achieved

    Apr 10, 2016

    PHP Datatypes
  • Achievement

    PHP Data & Structure

    PHP Basics (Retired)

    Achieved

    Apr 8, 2016

    PHP Data & Structure
  • Achievement

    PHP Getting Started

    PHP Basics (Retired)

    Achieved

    Apr 7, 2016

    PHP Getting Started
  • Achievement

    Combine and Minify Assets

    Introduction to Front End Performance Optimization

    Achieved

    Apr 7, 2016

    Combine and Minify Assets
  • Achievement

    Optimize Assets

    Introduction to Front End Performance Optimization

    Achieved

    Apr 7, 2016

    Optimize Assets
  • Achievement

    Measuring Performance

    Introduction to Front End Performance Optimization

    Achieved

    Apr 7, 2016

    Measuring Performance
  • Achievement

    Planning for Performance

    Introduction to Front End Performance Optimization

    Achieved

    Apr 7, 2016

    Planning for Performance
  • Achievement

    Creating an SVG

    SVG Basics

    Achieved

    Apr 7, 2016

    Creating an SVG
  • Achievement

    Introduction to SVG

    SVG Basics

    Achieved

    Apr 7, 2016

    Introduction to SVG
  • Achievement

    Workflows

    Git Basics

    Achieved

    Apr 6, 2016

    Workflows
  • Achievement

    Working With Remote Repositories

    Git Basics

    Achieved

    Apr 6, 2016

    Working With Remote Repositories
  • Achievement

    Merging

    Git Basics

    Achieved

    Apr 6, 2016

    Merging
  • Achievement

    Branches

    Git Basics

    Achieved

    Apr 6, 2016

    Branches
  • Achievement

    Getting Started With Git

    Git Basics

    Achieved

    Apr 5, 2016

    Getting Started With Git
  • Achievement

    Why Version Control Matters

    Git Basics

    Achieved

    Apr 5, 2016

    Why Version Control Matters
  • Achievement

    Installing Programs

    Console Foundations

    Achieved

    Apr 4, 2016

    Installing Programs
  • Achievement

    Environment and Redirection

    Console Foundations

    Achieved

    Apr 4, 2016

    Environment and Redirection
  • Achievement

    Console Processes

    Console Foundations

    Achieved

    Apr 4, 2016

    Console Processes
  • Achievement

    Console Users and Permission

    Console Foundations

    Achieved

    Apr 4, 2016

    Console Users and Permission
  • Achievement

    Moving Around in the Console

    Console Foundations

    Achieved

    Apr 4, 2016

    Moving Around in the Console
  • Achievement

    Chrome DevTools Basics

    Website Optimization

    Achieved

    Mar 15, 2016

    Chrome DevTools Basics
  • Achievement

    Web Apps

    Accessibility

    Achieved

    Mar 14, 2016

    Web Apps
  • Achievement

    Websites

    Accessibility

    Achieved

    Mar 14, 2016

    Websites
  • Achievement

    Introduction

    Accessibility

    Achieved

    Mar 14, 2016

    Introduction
  • Achievement

    Quiz Practice Project

    Object-Oriented JavaScript (2015)

    Achieved

    Mar 13, 2016

    Quiz Practice Project
  • Achievement

    Prototypal Inheritance

    Object-Oriented JavaScript (2015)

    Achieved

    Mar 13, 2016

    Prototypal Inheritance
  • Achievement

    Constructor Functions & Prototypes

    Object-Oriented JavaScript (2015)

    Achieved

    Mar 13, 2016

    Constructor Functions & Prototypes
  • Achievement

    Introduction to Methods

    Object-Oriented JavaScript (2015)

    Achieved

    Mar 10, 2016

    Introduction to Methods
  • Achievement

    AJAX and APIs

    AJAX Basics (retiring)

    Achieved

    Mar 8, 2016

    AJAX and APIs
  • Achievement

    jQuery and AJAX

    AJAX Basics (retiring)

    Achieved

    Mar 7, 2016

    jQuery and AJAX
  • Achievement

    Programming AJAX

    AJAX Basics (retiring)

    Achieved

    Mar 1, 2016

    Programming AJAX
  • Achievement

    AJAX Concepts

    AJAX Basics (retiring)

    Achieved

    Feb 24, 2016

    AJAX Concepts
  • Achievement

    Custom Media Players

    HTML Video and Audio (Retired)

    Achieved

    Feb 19, 2016

    Custom Media Players
  • Achievement

    Captioning Video

    HTML Video and Audio (Retired)

    Achieved

    Feb 19, 2016

    Captioning Video
  • Achievement

    Media Basics

    HTML Video and Audio (Retired)

    Achieved

    Feb 19, 2016

    Media Basics
  • Achievement

    Traversing and Manipulating the DOM with JavaScript

    Interactive Web Pages with JavaScript

    Achieved

    Feb 19, 2016

    Traversing and Manipulating the DOM with JavaScript
  • Achievement

    Selecting Elements and Adding Events with JavaScript

    Interactive Web Pages with JavaScript

    Achieved

    Feb 17, 2016

    Selecting Elements and Adding Events with JavaScript
  • Achievement

    JavaScript and the DOM

    Interactive Web Pages with JavaScript

    Achieved

    Feb 17, 2016

    JavaScript and the DOM
  • Achievement

    Structuring Tables

    HTML Tables

    Achieved

    Feb 16, 2016

    Structuring Tables
  • Achievement

    Table Basics

    HTML Tables

    Achieved

    Feb 16, 2016

    Table Basics
  • Achievement

    Creating a Simple Drawing Application

    jQuery Basics (2014)

    Achieved

    Feb 16, 2016

    Creating a Simple Drawing Application
  • Achievement

    Creating a Password Confirmation Form

    jQuery Basics (2014)

    Achieved

    Feb 15, 2016

    Creating a Password Confirmation Form
  • Achievement

    Creating a Mobile Drop Down Menu

    jQuery Basics (2014)

    Achieved

    Feb 15, 2016

    Creating a Mobile Drop Down Menu
  • Achievement

    Creating a Simple Lightbox

    jQuery Basics (2014)

    Achieved

    Feb 11, 2016

    Creating a Simple Lightbox
  • Achievement

    Creating a Spoiler Revealer

    jQuery Basics (2014)

    Achieved

    Feb 5, 2016

    Creating a Spoiler Revealer
  • Achievement

    Introduction to jQuery

    jQuery Basics (2014)

    Achieved

    Feb 5, 2016

    Introduction to jQuery
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Feb 4, 2016

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Feb 4, 2016

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Feb 4, 2016

    Selectors - Beyond the Basics
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Feb 2, 2016

    Building a Layout with Flexbox
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Jan 29, 2016

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    Jan 20, 2016

    Understanding Flexbox
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    Jan 19, 2016

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    Jan 19, 2016

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    Jan 19, 2016

    Responsive Theory
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    Jan 19, 2016

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    Jan 19, 2016

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    Jan 18, 2016

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    Jan 18, 2016

    Controlling Layout with CSS Display Modes
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    Jan 15, 2016

    Getting Started with CSS Layout
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Jan 14, 2016

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Jan 12, 2016

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Jan 6, 2016

    JavaScript Loops
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Dec 21, 2015

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Dec 18, 2015

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Dec 18, 2015

    Form Basics
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Dec 17, 2015

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Dec 14, 2015

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Dec 11, 2015

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Dec 10, 2015

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Dec 9, 2015

    Introducing JavaScript
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Dec 8, 2015

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Dec 8, 2015

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Dec 4, 2015

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Dec 2, 2015

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Dec 2, 2015

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Dec 2, 2015

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Dec 1, 2015

    Getting Started with CSS
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Dec 1, 2015

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Dec 1, 2015

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Dec 1, 2015

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Nov 30, 2015

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Nov 30, 2015

    Styling Web Pages and Navigation
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Nov 27, 2015

    Customizing Colors and Fonts
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Nov 26, 2015

    CSS: Cascading Style Sheets
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Nov 26, 2015

    Creating HTML Content
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Nov 25, 2015

    HTML First
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Nov 25, 2015

    Beginning HTML and CSS
  • Achievement

    Newbie

    Achieved

    Nov 25, 2015

    Newbie