Nelson Fleig

Nelson Fleig

Cologne

Learning to code on Treehouse since 10/2016. I am a recovering financial analyst who decided to quit the suits and spreadsheets and pursue his love for Computer Sciences. Currently working on my Master of Science in Business Information Systems.

Skills & Experience

  • Company

    ISBAN GmbH

  • Job Title

    Developer

  • Spoken Languages

    • english
    • german
    • spanish
  • Looking for work

    Yes

197 Achievements

  • How to Make Wireframes in Balsamiq
  • Understanding Our Users
  • Going Further with Grid Layout
  • How to Make Wireframes on Paper
  • What is Wireframing?
  • Intro to User Experience (UX) Design
  • Flexible Sized Grids
  • Introducing Grid Layout
  • Adding 3D Effects with CSS
  • Principles of Design
  • Elements of Design
  • Express Middleware
  • Sessions and Cookies
  • User Registration and Login
  • What is Authentication?
  • Getting Started with CSS Transforms
  • Transition Timing Functions and Delays
  • Introduction to SVG
  • Getting Started with CSS Transitions
  • Design Patterns
  • Page Layout
  • Putting it all Together
  • Actions, Dispatch and Reducers. Oh my!
  • Modularizing the React Scoreboard Application
  • Getting Started with Redux
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Working With Collections
  • Understanding MongoDB
  • Getting Started with MongoDB
  • Setting up with Create React App
  • React Component Patterns
  • Stateful Components and Lifecycle Methods
  • Managing State and Data Flow
  • Build Modular Interfaces with Components
  • Stateful Components
  • Introducing Props
  • Thinking in Components
  • First Steps in React
  • Making the Game Interactive
  • Rendering the Game
  •  Building Constructor Methods and Generating Objects
  • Introducing 'Four in a Row'
  • Writing a Classifier
  • Machine Learning Vocabulary
  • Introduction to Machine Learning
  • Getting Started with Express
  • Getters and Setters
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Angular Form Validation
  • HTTP Methods and Headers
  • Creating a Basic Template Engine in Node.js
  • Handling Routes in Node.js
  • Creating a Simple Server in Node.js
  • Angular Basic Forms
  • Defining Variables With let and const
  • Positioning Page Content
  • Services in Angular
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • Angular Components
  • Fundamental Concepts
  • Setting Up an Angular Application
  • Designing with the Latest Features
  • Finishing the Game
  • Creating a Command Line Weather Application
  • Handling Errors in Node
  • Getting Data From an API With Node
  • Day 2: Advanced Selecting
  • Day 1: Joining Tables
  • Orientation: Selecting Data
  • Introduction to Node.js
  • Classes
  • Objects and New Collection Types
  • The Cooler Parts of ES2015
  • ES2015 Basics
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Improving the Application Code
  • Editing and Filtering Names
  • Callbacks and the DOM
  • Callbacks with Timers
  • Introduction to Callback Functions
  • Adding and Removing Names
  • Introducing JavaScript
  • Getting the REST You Need
  • File Uploads and Entity Updates in Spring + Hibernate
  • User Messages in Spring
  • Getting Started with CRUD in Spring + Hibernate
  • Data-Driven Application Design
  • Integrating Hibernate with Spring
  • Persisting Data with Hibernate
  • Getting Started with Hibernate
  • Data Persistence & ORMs
  • Using the MVC Architecture with Spring
  • Modeling, Storing, and Presenting Data with Spring
  • Creating Spring Controllers and Thymeleaf Views
  • Writing Your Own Java Annotation
  • Using Java's Built-In Annotations
  • Bells and Whistles
  • Diving into Web Development
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • What to Test
  • How To Test
  • Why Test
  • Event Planning
  • Build a Pomodoro App
  • Design a Better App
  • Graphical User Interfaces
  • Advanced Tooling
  • IDE Exploration
  • How it Works
  • Spring Components and Configuring Our App
  • Setting Up Your Local Environment for Spring Development
  • Efficiency!
  • Exploring the Java Collections Framework
  • Organizing Data
  • Getting There
  • Delivering the MVP
  • Traversing the DOM
  • Creating the MVP
  • Responding to User Interaction
  • Making Changes to the DOM
  • Getting a Handle on the DOM
  • The Browser Environment
  • JavaScript Objects
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • JavaScript Arrays
  • JavaScript Loops
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • Getting Started with CSS
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Subqueries
  • Set Operations
  • Joining Table Data with SQL
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Finding the Data You Want
  • Getting Data from a Database
  • Data, Databases and SQL
  • HTML First
  • Beginning HTML and CSS
  • Updating Data in a Database
  • JavaScript Variables
  • Adding Data to a Database
  • Table Relationships
  • Database Keys
  • Database Normalization
  • Introducing JavaScript
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • Harnessing the Power of Objects
  • Meet Objects
  • DOM Traversal
  • DOM Manipulation
  • Events
  • Hello, jQuery!
  • Meet Objects
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Adding a New Web Page
  • Make It Beautiful with CSS
  • HTML: The Structural Foundation of Web Pages and Applications
  • Getting Familiar with HTML and CSS
  • Newbie