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Declan Duffy

Member Since July 6, 2020

12,185

Total Points

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4,544

Python

4544 pts
Achievements

0 pts
Forum
•
1,439

Databases

1439 pts
Achievements

0 pts
Forum
•
1,215

CSS

1215 pts
Achievements

0 pts
Forum
•
1,107

JavaScript

1107 pts
Achievements

0 pts
Forum
•
986

Java

986 pts
Achievements

0 pts
Forum
•
840

HTML

840 pts
Achievements

0 pts
Forum
•
576

Development Tools

576 pts
Achievements

0 pts
Forum
•
295

Android

295 pts
Achievements

0 pts
Forum
•
199

Data Analysis

199 pts
Achievements

0 pts
Forum
•
40

Digital Literacy

40 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.

139 Achievements

Achievement
UI Testing with Espresso

Testing in Android

Achieved
Aug 5, 2022
Achievement
Basic Android Programming

Build a Simple Android App with Java

Achieved
Feb 2, 2022
Achievement
Creating the Screen Layout

Build a Simple Android App with Java

Achieved
Feb 2, 2022
Achievement
Getting Started with Android

Build a Simple Android App with Java

Achieved
Jan 19, 2022
Achievement
Graphical User Interfaces

Build a JavaFX Application

Achieved
Jan 13, 2022
Achievement
IDE Exploration

Local Development Environments

Achieved
Jan 12, 2022
Achievement
Emulating Built-ins

Basic Object-Oriented Python

Achieved
Oct 11, 2021
Achievement
Gotchas and Wins

Java Arrays

Achieved
Aug 31, 2021
Achievement
Iteration

Java Arrays

Achieved
Aug 5, 2021
Achievement
Creation

Java Arrays

Achieved
Aug 5, 2021
Achievement
Harnessing the Power of Objects

Java Objects

Achieved
Aug 4, 2021
Achievement
Meet Objects

Java Objects

Achieved
Aug 3, 2021
Achievement
Perfecting the Prototype

Java Basics

Achieved
Jul 27, 2021
Achievement
Using your New Tools

Java Basics

Achieved
Jul 25, 2021
Achievement
Getting Started with Java

Java Basics

Achieved
Jul 25, 2021
Achievement
“Clean” or “Dirty” Data

Cleaning and Preparing Data

Achieved
Feb 20, 2021
Achievement
Exploring pandas

Introduction to pandas

Achieved
Feb 8, 2021
Achievement
Meet pandas

Introduction to pandas

Achieved
Feb 5, 2021
Achievement
Array Programming

Introduction to NumPy

Achieved
Feb 1, 2021
Achievement
Array Organization

Introduction to NumPy

Achieved
Feb 1, 2021
Achievement
Meet NumPy

Introduction to NumPy

Achieved
Jan 27, 2021
Achievement
Data Eruption

Introduction to Data Visualization with Matplotlib

Achieved
Jan 26, 2021
Achievement
Chart Toppers

Introduction to Data Visualization with Matplotlib

Achieved
Jan 22, 2021
Achievement
Getting Started with Data Visualization

Introduction to Data Visualization with Matplotlib

Achieved
Jan 22, 2021
Achievement
Day 3: Getting Creative

SQL Reporting by Example

Achieved
Jan 20, 2021
Achievement
Day 2: Advanced Selecting

SQL Reporting by Example

Achieved
Jan 19, 2021
Achievement
Day 1: Joining Tables

SQL Reporting by Example

Achieved
Jan 18, 2021
Achievement
Orientation: Selecting Data

SQL Reporting by Example

Achieved
Jan 18, 2021
Achievement
Subqueries

Querying Relational Databases

Achieved
Jan 15, 2021
Achievement
Set Operations

Querying Relational Databases

Achieved
Jan 15, 2021
Achievement
Joining Table Data with SQL

Querying Relational Databases

Achieved
Jan 14, 2021
Achievement
Table Relationships

Querying Relational Databases

Achieved
Jan 11, 2021
Achievement
Database Keys

Querying Relational Databases

Achieved
Jan 11, 2021
Achievement
Database Normalization

Querying Relational Databases

Achieved
Jan 11, 2021
Achievement
Date and Time Functions

Reporting with SQL

Achieved
Jan 10, 2021
Achievement
Aggregate and Numeric Functions

Reporting with SQL

Achieved
Jan 9, 2021
Achievement
Working with Text

Reporting with SQL

Achieved
Jan 8, 2021
Achievement
Ordering, Limiting and Paging Results

Reporting with SQL

Achieved
Jan 7, 2021
Achievement
Handling Errors When Manipulating Data

Modifying Data with SQL

Achieved
Jan 6, 2021
Achievement
Deleting Data from a Database

Modifying Data with SQL

Achieved
Jan 6, 2021
Achievement
Updating Data in a Database

Modifying Data with SQL

Achieved
Jan 6, 2021
Achievement
Adding Data to a Database

Modifying Data with SQL

Achieved
Jan 6, 2021
Achievement
The Data Analysis Process

Data Analysis Basics

Achieved
Jan 5, 2021
Achievement
Getting to Know Your Data

Data Analysis Basics

Achieved
Jan 5, 2021
Achievement
Introducing Data Analysis

Data Analysis Basics

Achieved
Jan 5, 2021
Achievement
Store Multiple Values in an Array

JavaScript Arrays

Achieved
Oct 14, 2020
Achievement
Working with 'for' Loops

JavaScript Loops

Achieved
Sep 28, 2020
Achievement
Simplify Repetitive Tasks with Loops

JavaScript Loops

Achieved
Sep 27, 2020
Achievement
Building a Layout with Flexbox

CSS Flexbox Layout

Achieved
Sep 18, 2020
Achievement
Flexbox Properties

CSS Flexbox Layout

Achieved
Sep 18, 2020
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Sep 18, 2020
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Sep 18, 2020
Achievement
Media Queries

Responsive Layouts

Achieved
Sep 18, 2020
Achievement
Responsive Theory

Responsive Layouts

Achieved
Sep 11, 2020
Achievement
Positioning Page Content

CSS Layout Basics

Achieved
Sep 11, 2020
Achievement
CSS Layout Project

CSS Layout Basics

Achieved
Sep 11, 2020
Achievement
Page Layout with the Float Property

CSS Layout Basics

Achieved
Sep 10, 2020
Achievement
Controlling Layout with CSS Display Modes

CSS Layout Basics

Achieved
Sep 9, 2020
Achievement
Getting Started with CSS Layout

CSS Layout Basics

Achieved
Sep 9, 2020
Achievement
Arrow Functions

JavaScript Functions

Achieved
Sep 2, 2020
Achievement
Pass Information Into Functions

JavaScript Functions

Achieved
Sep 2, 2020
Achievement
Create Reusable Code with Functions

JavaScript Functions

Achieved
Sep 2, 2020
Achievement
The Math Object

JavaScript Numbers

Achieved
Sep 1, 2020
Achievement
Working with Numbers

JavaScript Numbers

Achieved
Sep 1, 2020
Achievement
Making Decisions in Your Code with Conditional Statements

JavaScript Basics

Achieved
Aug 28, 2020
Achievement
Working With Strings

JavaScript Basics

Achieved
Aug 28, 2020
Achievement
Storing and Tracking Information with Variables

JavaScript Basics

Achieved
Aug 28, 2020
Achievement
Hello, JavaScript!

JavaScript Basics

Achieved
Aug 27, 2020
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Aug 27, 2020
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Aug 27, 2020
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Aug 26, 2020
Achievement
The Box Model

CSS Basics (2014)

Achieved
Aug 21, 2020
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Aug 21, 2020
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Aug 20, 2020
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Aug 20, 2020
Achievement
Going Further with HTML

HTML Basics

Achieved
Aug 19, 2020
Achievement
Images, Text and Links

HTML Basics

Achieved
Aug 19, 2020
Achievement
Structuring Your Content

HTML Basics

Achieved
Aug 16, 2020
Achievement
Getting Started With HTML

HTML Basics

Achieved
Aug 12, 2020
Achievement
Covering Your Bases

Python Testing

Achieved
Aug 11, 2020
Achievement
Be Assertive!

Python Testing

Achieved
Aug 11, 2020
Achievement
What Is Testing?

Python Testing

Achieved
Aug 11, 2020
Achievement
Treehouse Festival

Achieved
Aug 11, 2020
Achievement
How to Win Friends

Build a Social Network with Flask

Achieved
Aug 10, 2020
Achievement
Broadcasting

Build a Social Network with Flask

Achieved
Aug 10, 2020
Achievement
Takin' Names

Build a Social Network with Flask

Achieved
Aug 7, 2020
Achievement
Making Strong Users

Build a Social Network with Flask

Achieved
Aug 6, 2020
Achievement
Gettin' CRUD-y With It

Using Databases in Python

Achieved
Aug 6, 2020
Achievement
Our Diary App

Using Databases in Python

Achieved
Aug 5, 2020
Achievement
Meet Peewee

Using Databases in Python

Achieved
Aug 5, 2020
Achievement
Finding the Data You Want

SQL Basics

Achieved
Aug 4, 2020
Achievement
Getting Data from a Database

SQL Basics

Achieved
Aug 4, 2020
Achievement
Data, Databases and SQL

SQL Basics

Achieved
Aug 4, 2020
Achievement
GET and POST Requests in a Browser

HTTP Basics

Achieved
Aug 3, 2020
Achievement
Introduction to HTTP

HTTP Basics

Achieved
Aug 3, 2020
Achievement
Character Builder

Flask Basics

Achieved
Aug 3, 2020
Achievement
Flask Templates

Flask Basics

Achieved
Jul 30, 2020
Achievement
Welcome to Flask

Flask Basics

Achieved
Jul 30, 2020
Achievement
Choosing Options

HTML Forms

Achieved
Jul 30, 2020
Achievement
Organizing Forms

HTML Forms

Achieved
Jul 29, 2020
Achievement
Form Basics

HTML Forms

Achieved
Jul 29, 2020
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Jul 29, 2020
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Jul 29, 2020
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Jul 28, 2020
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Jul 28, 2020
Achievement
Python File Systems Project Starter

Python for File Systems

Achieved
Jul 28, 2020
Achievement
Python File Systems Manipulation

Python for File Systems

Achieved
Jul 28, 2020
Achievement
Python Regular Expressions

Regular Expressions in Python

Achieved
Jul 27, 2020
Achievement
Regular Expressions

Introduction to Regular Expressions

Achieved
Jul 25, 2020
Achievement
Python File Systems Navigation

Python for File Systems

Achieved
Jul 24, 2020
Achievement
Common Commands

Introduction to the Terminal

Achieved
Jul 24, 2020
Achievement
Directories and Files

Introduction to the Terminal

Achieved
Jul 22, 2020
Achievement
The Command Shell

Introduction to the Terminal

Achieved
Jul 22, 2020
Achievement
Timezones

Dates and Times in Python (2014)

Achieved
Jul 22, 2020
Achievement
Math Quiz App

Dates and Times in Python (2014)

Achieved
Jul 20, 2020
Achievement
Dates and Times

Dates and Times in Python (2014)

Achieved
Jul 19, 2020
Achievement
Buggy Logs

Write Better Python

Achieved
Jul 17, 2020
Achievement
Cleaner Code

Write Better Python

Achieved
Jul 17, 2020
Achievement
Dice Roller

Object-Oriented Python

Achieved
Jul 17, 2020
Achievement
Python: Advanced Objects

Object-Oriented Python

Achieved
Jul 15, 2020
Achievement
Python: Inheritance

Object-Oriented Python

Achieved
Jul 15, 2020
Achievement
Python: Instant Objects

Object-Oriented Python

Achieved
Jul 14, 2020
Achievement
Iterating and Packing with Dictionaries

Introducing Dictionaries

Achieved
Jul 13, 2020
Achievement
Introducing Dictionaries

Introducing Dictionaries

Achieved
Jul 13, 2020
Achievement
Sequence Operations

Python Sequences

Achieved
Jul 13, 2020
Achievement
Sequence Iterations

Python Sequences

Achieved
Jul 13, 2020
Achievement
Packing and Unpacking

Functions, Packing, and Unpacking

Achieved
Jul 12, 2020
Achievement
Getting Info In and Out of Functions

Functions, Packing, and Unpacking

Achieved
Jul 11, 2020
Achievement
Introduction to Functions

Functions, Packing, and Unpacking

Achieved
Jul 11, 2020
Achievement
Getting to Know Tuples

Introducing Tuples

Achieved
Jul 10, 2020
Achievement
Build an Application

Introducing Lists

Achieved
Jul 10, 2020
Achievement
Using Lists

Introducing Lists

Achieved
Jul 10, 2020
Achievement
Meet Lists

Introducing Lists

Achieved
Jul 9, 2020
Achievement
Practice Functions

Practice Creating and Using Functions in Python

Achieved
Jul 8, 2020
Achievement
All Together Now

Python Basics

Achieved
Jul 8, 2020
Achievement
Functions and Looping

Python Basics

Achieved
Jul 8, 2020
Achievement
Types and Branching

Python Basics

Achieved
Jul 7, 2020
Achievement
Meet Python

Python Basics

Achieved
Jul 6, 2020
Achievement
Newbie

Achieved
Jul 6, 2020