Randy Layne
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Randy Layne

Treehouse Moderator

Virginia

55,462

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500 Achievements

  • Getting to Know Tuples
  • Build an Application
  • Using Lists
  • Meet Lists
  • Build a Spreadsheet
  • Spreadsheet Best Practices
  • Spreadsheet Functions & Formulas
  • Getting Started With Spreadsheets
  • Introducing Spreadsheets
  • All Together Now
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • Hello, JavaScript!
  • Storing and Tracking Information with Variables
  • Working With Strings
  • Making Decisions in Your Code with Conditional Statements
  • Gems In Depth
  • Ruby Gems
  • Blocks Practice
  • Working With Blocks
  • Ruby Blocks
  • Build a Bank Account Class
  • Ruby Variables and Methods
  • Ruby Objects and Classes
  • Build a Simple Contact List
  • Ruby Iteration
  • Ruby Loops
  • Build a Grocery List Program
  • Ruby Hashes
  • Ruby Arrays
  • Ruby Conditionals
  • Ruby Numeric Types
  • Ruby Objects
  • Ruby Strings and Escape Sequences
  • Ruby Syntax
  • A Route to a Delete Action
  • Routes to Update Actions
  • Routes for Create Actions
  • A Route to a Read Action
  • Rails Resource Index
  • Adding a Model Attribute
  • Using the Rails Console
  • Handling Rails Requests
  • Creating Rails Apps
  • Vulnerabilities:  Injection, XSS, CSRF
  • The OWASP Top 10 Explained
  • Maintaining Secure Web Apps
  • Protecting Data and Keeping Attackers Out
  • Why Protect Your Web Apps
  • Security: Solutions
  • Security: Concerns
  • Security in Practice
  • Common Attacks and Defenses
  • Hello Internet!
  • Errors and Exceptions
  • Endpoints and Routing
  • REST API in Slim
  • Creating a GitHub Client
  • Communicating with a RESTful API
  • Getting the REST You Need 2
  • Testing Existing Projects
  • Test Driven Development
  • Introduction to Unit Testing
  • Error Handling
  • Creating Distributable OOP Packages
  • Autoloading and Composer
  • Databases and International Concerns
  • Starting Right with PHP Best Practices
  • Templating Languages
  • Building an MVC Project
  • Model View Controller
  • JavaScript Objects and Conditionals
  • JavaScript Arrays and Loops
  • JavaScript Functions
  • Data Types and Variables
  • AWS and "The Cloud"
  • Abstract Classes in PHP
  • Using Interfaces in PHP
  • Designing Interfaces in PHP
  • Extending the Family
  • Inheritance
  • Building a Collection
  • Building the Recipe
  • Understanding Classes
  • Why Object-Oriented Programming?
  • Database Security
  • Queries & Results
  • Getting Started with PDO
  • Updating and Deleting Records
  • Reading and Writing Reports
  • Creating Records
  • Project Setup
  • Parsing Specific Formats
  • Basic File Handling
  • Introducing the Authentication Project
  • Swift Operators
  • Swift Types
  • An Introduction to Swift Programming
  • Browser Persistent Data with PHP
  • PHPDB Stage 5: Search
  • PHPDB Stage 4: Pagination with LIMITs
  • PHPDB Stage 3: Using Relational Data
  • PHPDB Stage 2: Querying the Database with PHP
  • PHPDB Stage 1: Databases and PHP
  • 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
  • Spring Components and Configuring Our App
  • Setting Up Your Local Environment for Spring Development
  • Writing Your Own Java Annotation
  • Using Java's Built-In Annotations
  • Bells and Whistles
  • Diving into Web Development
  • What to Test
  • How To Test
  • Why Test
  • Building a Flashcard App
  • Sweeping Vues: Loops, Methods, Directives
  • What a Beautiful Vue!
  • Introducing Vue
  • Interactivity in Adobe XD
  • Prototyping Designs in Adobe XD
  • Introducing Adobe XD
  • Demystifying the Portfolio
  • Branches on Git Hosting Services
  • Remote Branches
  • Merging
  • Branches
  • Common Commands
  • Directories and Files
  • The Command Shell
  • Data Reader
  • Adding a List Page
  • Modeling and Presenting Data
  • Views
  • Controllers
  • Project Setup
  • Abstraction
  • System.Object
  • 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
  • Polymorphism
  • Loops and Final Touches
  • Encapsulation with Properties
  • Encapsulation and Arrays
  • Inheritance
  • Methods
  • Object-Oriented Programming
  • Recursion and Space Complexity
  • Algorithms in Code
  • Time Complexity
  • Playing a Counting Game
  • Using Slack Effectively
  • Introducing Slack for the Techdegree
  • Going MEAN with Angular
  • Going MEAN with Express
  • Introduction to MEAN
  • Getting the REST You Need
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • GitHub and Other Remote Repositories
  • Managing Committed Files
  • First Commits
  • Combining Array Methods
  • Array Manipulation
  • Array Iteration
  • Working with jQuery Collections (2017)
  • Understanding jQuery Events and DOM Traversal (2017)
  • Introducing jQuery (2017)
  • JavaScript Tools and Workflows
  • JavaScript is Everywhere
  • Computer Basics
  • Building Forms With Bootstrap
  • Using Bootstrap Components
  • Responsive Layouts With the Bootstrap Grid
  • Getting to Know Bootstrap 4
  • 25th Techdegree Peer Review
  • Interactive Visualizations
  • Styling and Scaling Data
  • Data Binding with D3
  • Forms
  • Tables
  • Objects
  • Links
  • Lists
  • Text
  • Introduction
  • Selections with D3
  • Getters and Setters
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Event Planning
  • Build a Pomodoro App
  • Design a Better App
  • Graphical User Interfaces
  • Advanced Tooling
  • IDE Exploration
  • How it Works
  • Efficiency!
  • Exploring the Java Collections Framework
  • 1st Techdegree Peer Review
  • Scrum Artifacts
  • Scrum Events
  • Introducing Scrum
  • What is Agile?
  • Organizing Data
  • Getting There
  • Delivering the MVP
  • Creating the MVP
  • Harnessing the Power of Objects
  • Meet Objects
  • Gotchas and Wins
  • Iteration
  • Creation
  • Putting it all Together
  • Actions, Dispatch and Reducers. Oh my!
  • Modularizing the React Scoreboard Application
  • Lists, Code, Links and Images
  • Understanding Markdown
  • Advanced Directives
  • Concepts on Advanced Functions
  • Perfect
  • Perform
  • Console I/O
  • Prepare and Plan
  • Advanced Variables, Mixins, Functions, and Placeholders
  • Python For Beginners
  • Getting Started with Advanced Sass
  • Getting Started with Redux
  • Next Steps
  • Improving Our Tests
  • Behavior Driven Development with Mocha & Chai
  • Introducing Unit Testing
  • Completing and Testing the API
  • Communicating with Mongo Through Mongoose
  • Modeling Data for the API
  • Building API Routes in Express
  • Building a REST Service
  • Express Middleware
  • Sessions and Cookies
  • User Registration and Login
  • What is Authentication?
  • Go Further With Mongo
  • Working With Collections
  • Understanding MongoDB
  • Getting Started with MongoDB
  • Serving Static Files in Express
  • Applying Express Knowledge
  • Middleware
  • Deeper into Routing with Express
  • Using Templates with Express
  • Getting Started with Express
  • Improving your Gulp Workflow
  • Compile Sass with Gulp
  • Gulp your JavaScript workflow!
  • Welcome to Gulp.js
  • HTTP Methods and Headers
  • Creating a Basic Template Engine in Node.js
  • Handling Routes in Node.js
  • Creating a Simple Server in Node.js
  • Updating and Uninstalling Packages with npm
  • Installing Packages with npm
  • What is npm?
  • Creating a Command Line Weather Application
  • Handling Errors in Node
  • Getting Data From an API With Node
  • Introduction to Node.js
  • Classes
  • Objects and New Collection Types
  • The Cooler Parts of ES2015
  • ES2015 Basics
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • Going Further with Routing
  • Navigating, Nesting and Redirecting Routes
  • Getting Started with React Router
  • Refining the App
  • Building the Application
  • 50th Techdegree Peer Review
  • Setting up with Create React App
  • Component Lifecycle
  • Designing Dataflow
  • Stateful Components
  • Thinking in Components
  • First Steps in React
  • Callbacks and the DOM
  • Callbacks with Timers
  • Introduction to Callback Functions
  • Going Further with Grid Layout
  • Flexible Sized Grids
  • Introducing Grid Layout
  • Get Involved in Open Source
  •  Create a Web Presence on GitHub
  •  Working on a Team
  • Working By Yourself
  • Hello, GitHub!
  • Testing for Accessibility
  • Mobile Accessibility
  • Accessible UI Patterns
  • Semantic HTML and WAI-ARIA
  • WCAG 2.0 (and Other Standards)
  • Access for Everybody
  • 10th Techdegree Peer Review
  • 5th Techdegree Peer Review
  • 5 Star Techdegree Reviewer
  • Improving the Application Code
  • Editing and Filtering Names
  • Adding and Removing Names
  • Traversing the DOM
  • Responding to User Interaction
  • Making Changes to the DOM
  • Getting a Handle on the DOM
  • The Browser Environment
  • Building Your Resume
  • Modular Media Queries
  • Sass Grid System
  • SMACSS and Sass
  • Sass and BEM
  • Getting Modular with Mixins and Functions
  • Debugging, Best Practices, and Production
  • Refactoring with Sass
  • Installing Sass and Setting up the Project
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • DOM Traversal
  • DOM Manipulation
  • Events
  • Hello, jQuery!
  • Finishing the Game
  • Introducing JavaScript
  • Art Direction with the Picture Element
  • Image Delivery with Srcset and Sizes
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • Finding the Data You Want
  • Getting Data from a Database
  • Data, Databases and SQL
  • PHP Email Form Errors
  • PHP Email Forms
  • PHP Inventory
  • PHP Includes
  • PHP Internal Functions
  • PHP Returns & Closures
  • PHP Functions Basics
  • PHP Loops
  • PHP Arrays
  • PHP Conditionals
  • PHP on the Web
  • Daily Exercise Program
  • Unit Converter
  • Getting to Know PHP
  • Workflows
  • Working With Remote Repositories
  • Combine and Minify Assets
  • Optimize Assets
  • Measuring Performance
  • Planning for Performance
  • Merging
  • Branches
  • Getting Started With Git
  • Why Version Control Matters
  • Installing Programs
  • Environment and Redirection
  • Console Processes
  • Console Users and Permission
  • Moving Around in the Console
  • Chrome DevTools Basics
  • Web Apps
  • Websites
  • Introduction
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Captioning Video
  • Media Basics
  • Building Forms with Bootstrap
  • Using Bootstrap Components
  • Responsive Layouts with the Bootstrap Grid
  • Getting to Know Bootstrap 4
  • Creating a Simple Drawing Application
  • Creating a Password Confirmation Form
  • Creating a Mobile Drop Down Menu
  • Creating a Simple Lightbox
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • JavaScript Objects
  • JavaScript Arrays
  • JavaScript Loops
  • Going Further with HTML
  • Images, Text and Links
  • Structuring Your Content
  • Getting Started With HTML
  • 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
  • Add Reusable Logic to Your Sass
  • Write Smart and Efficient CSS with Sass
  • Improve Your Workflow with Sass
  • Getting Started with Sass
  • Finalizing the Project
  • Case Studies and Examples
  • The Brand Identity Design Process
  • Introduction to Brand Identity
  • The Logo Sprint
  • Logo Design 101
  • Keyframe and Line Drawing Animations
  • Transitions and Transforms
  • Adding 3D Effects with CSS
  • Getting Started with CSS Transforms
  • Transition Timing Functions and Delays
  • Getting Started with CSS Transitions
  • Save for the Web
  • Adding Images and a Mockup
  • Logo Design
  • Creating a Wireframe
  • Introducing Adobe Illustrator
  • Workflow Basics
  • Slices & Save for Web
  • Vector Shapes
  • Type Tools
  • Masks Basics
  • Layer Basics
  • Workspace Basics
  • Design Foundations Final
  • Becoming a Problem Solver
  • Understanding Aesthetics
  • Introduction to Design
  • Creating an SVG
  • Introduction to SVG
  • Structuring Tables
  • Table Basics
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • The Internet
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Positioning Page Content
  • CSS Layout Project
  • 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
  • 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
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Newbie