Jasper Peijer

Jasper Peijer

Gelderland

16 y/o programmer. Programming is my life.

Skills & Experience

  • Company

    NetSc0pe Development

  • Spoken Languages

    • English
    • Dutch
  • Awards

    • Java
    • HTML, CSS
    • JavaScript
    • PHP
    • SQL
    • C#
    • Cisco IOS (Basics)

212 Achievements

  • Meet Lists
  • Compile Sass with Gulp
  • Gulp your JavaScript workflow!
  • Welcome to Gulp.js
  • Updating and Uninstalling Packages with npm
  • Installing Packages with npm
  • What is npm?
  • HTTP Methods and Headers
  • Creating a Basic Template Engine in Node.js
  • Handling Routes in Node.js
  • Creating a Simple Server in Node.js
  • Getters and Setters
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Working with jQuery Collections (2017)
  • Understanding jQuery Events and DOM Traversal (2017)
  • Introducing jQuery (2017)
  • AJAX and APIs
  • jQuery and AJAX
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • JavaScript Tools and Workflows
  • JavaScript is Everywhere
  • Creating a Command Line Weather Application
  • Handling Errors in Node
  • Getting Data From an API With Node
  • Introduction to Node.js
  • Extending the Family
  • Inheritance
  • Designing Interfaces in PHP
  • Building a Collection
  • Building the Recipe
  • Understanding Classes
  • Why Object-Oriented Programming?
  • Modules and Themes
  • Site Building with the Drupal Interface
  • Learn About Drupal
  • All Together Now
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • Score, Enemies, and Game State
  • Pickups
  • Player Input and Cameras
  • The Unity Editor and Scene Setup
  • Threads in Android
  • Publishing on Google Play
  • Hooking Up the Model to the View
  • Building the Weather UI
  • Working with JSON
  • Concurrency and Error Handling
  • Networking
  • Exploring an API
  • The Rest of the Story
  • Finishing the User Interface
  • The Model-View-Presenter Pattern
  • Selections with D3
  • Adding a List Page
  • Modeling and Presenting Data
  • Views
  • Controllers
  • Arrays
  • Project Setup
  • Intents and Multiple Activities
  • Tuning the User Interface
  • User Input in Android
  • Testing and Debugging
  • Improving Our Code
  • Basic Android Programming
  • Creating the Screen Layout
  • Programming AJAX
  • Getting Started with MongoDB
  • MASH JavaScript
  • MASH CSS
  • MASH HTML
  • Treehouse Club - JavaScript
  • Treehouse Club - CSS
  • WWW
  • The Internet
  • Computer Languages
  • Computer Basics
  • Day 3: Getting Creative
  • Day 2: Advanced Selecting
  • Day 1: Joining Tables
  • Orientation: Selecting Data
  • Subqueries
  • Set Operations
  • Joining Table Data with SQL
  • Web Apps
  • Websites
  • Introduction
  • Object-Oriented Programming
  • Table Relationships
  • Database Keys
  • Welcome to the Treehouse Club
  • Database Normalization
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • Finding the Data You Want
  • Getting Data from a Database
  • Ruby Syntax
  • Building Forms With Bootstrap
  • Using Bootstrap Components
  • Responsive Layouts With the Bootstrap Grid
  • Getting to Know Bootstrap 4
  • Exploring the Java Collections Framework
  • Organizing Data
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • DOM Traversal
  • DOM Manipulation
  • Events
  • Hello, jQuery!
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • Finishing the Game
  • Introducing JavaScript
  • Traversing the DOM
  • Responding to User Interaction
  • Making Changes to the DOM
  • PHP Email Form Errors
  • PHP Email Forms
  • PHP Inventory
  • PHP Includes
  • PHP Internal Functions
  • PHP Returns & Closures
  • PHP Functions Basics
  • PHP Loops
  • Getting a Handle on the DOM
  • The Browser Environment
  • PHP Arrays
  • PHP Conditionals
  • PHP on the Web
  • Daily Exercise Program
  • Unit Converter
  • Getting to Know PHP
  • Getting There
  • Delivering the MVP
  • Perfect
  • Python For Beginners
  • Getting Started with Android
  • Security: Concerns
  • Perform
  • Console I/O
  • Prepare and Plan
  • AJAX Concepts
  • Structuring Tables
  • Table Basics
  • Getting to Know Bootstrap 4
  • Creating a Simple Lightbox
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • JavaScript Objects
  • JavaScript Arrays
  • JavaScript Loops
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Understanding Flexbox
  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Positioning Page Content
  • CSS Layout Project
  • Data, Databases and SQL
  • Creating the MVP
  • Harnessing the Power of Objects
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • Introducing JavaScript
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Logo Design 101
  • Getting Started with CSS
  • 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
  • Captioning Video
  • Media Basics
  • Going Further with HTML
  • Images, Text and Links
  • Structuring Your Content
  • Meet Objects
  • Perfecting the Prototype
  • Using your New Tools
  • Introduction to Video Games
  • Getting Started with Java
  • Getting Started With HTML
  • Newbie