Rachel Johnson
seal-mask

Rachel Johnson

Treehouse Project Reviewer

Sydney

Developer in Beta.

63,027

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Skills & Experience

  • Company

    Level Up Dice

  • Job Title

    Creative Technologies

  • Spoken Languages

    • English
    • Cantonese
  • Looking for work

    Yes

458 Achievements

  • Tools of the Trade
  • Breaking Down Data Analysis
  • Welcome to Basic Math for Data Analysis
  • React Router and Authentication
  • Implementing Basic Authentication
  • Introducing the Authentication Project
  • Get Involved in Open Source
  •  Create a Web Presence on GitHub
  •  Working on a Team
  • Working By Yourself
  • Hello, GitHub!
  • Validating Data
  • The Importance of Data Validation
  • Retrieve Related Data in Sequelize Queries
  • Create Related Data Using Sequelize Models
  • Data Relationships in Sequelize
  • Understand Data Relationships
  • Exploring Async/Await
  • Understanding Promises
  • Asynchronous JavaScript with Callbacks
  • Mobile-First CSS Layout
  • Finishing Touches
  • Styling Images
  • Styling Boxes
  • Styling Text
  • CSS Media Queries
  • CSS Layout Techniques
  • Box Model Concepts
  • The CSS Box Model
  • Fundamental Concepts
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Connecting to a Database with SQLAlchemy
  • Creating a Basic Website with Flask
  • Build an Accessible Form
  • Introduction To Accessibility
  • Working with SQLAlchemy
  • Introduction to SQLAlchemy
  • Timezones
  • Math Quiz App
  • Dates and Times
  • Creating a Memory Game
  • Emulating Built-ins
  • Welcome to OOP
  • Technical Interview Prep: Basic Python
  • Buggy Logs
  • Cleaner Code
  • Iterating and Packing with Dictionaries
  • Introducing Dictionaries
  • Sequence Operations
  • Sequence Iterations
  • Packing and Unpacking
  • Getting Info In and Out of Functions
  • Introduction to Functions
  • Getting to Know Tuples
  • Build an Application
  • Using Lists
  • Meet Lists
  • Practice Functions
  • All Together Now
  • Functions and Looping
  • Types and Branching
  • Meet Python
  • Performing CRUD Operations
  • Defining Models
  • Getting Started with Sequelize
  • Going Further with Routing
  • Navigating, Nesting and Redirecting Routes
  • Getting Started with React Router
  • 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
  • Building API Routes in Express
  • Building a REST Service
  • Refactoring and Modularizing a REST API
  • Create, Read, Update, Delete
  • Managing Data and Asynchronous Code
  • Getting to Know REST APIs
  • Asynchronous Code in Express
  • Getting the REST You Need 2
  • What is Asynchronous Programming?
  • Programming AJAX
  • AJAX Concepts
  • Serving Static Files in Express
  • Applying Express Knowledge
  • Middleware
  • Deeper into Routing with Express
  • Using Templates with Express
  • Building a Flashcard App
  • Sweeping Vues: Loops, Methods, Directives
  • What a Beautiful Vue!
  • Introducing Vue
  • Loop Through Objects
  • Object Basics
  • Store Multiple Values in an Array
  • Loop Through Arrays
  • Multidimensional Arrays
  • Simplify Repetitive Tasks with Loops
  • Working with 'for' Loops
  • Create Reusable Code with Functions
  • Pass Information Into Functions
  • Arrow Functions
  • Working with Numbers
  • The Math Object
  • Hello, JavaScript!
  • Storing and Tracking Information with Variables
  • Working With Strings
  • Making Decisions in Your Code with Conditional Statements
  • Loops and Final Touches
  • Encapsulation with Properties
  • Encapsulation and Arrays
  • Inheritance
  • Methods
  • Object-Oriented Programming
  • Introduction to Unit Testing
  • MVC (Model)
  • MVC (View)
  • MVC (Controller)
  • Application Navigation (Routing)
  • Getting Started With Laravel
  • If Statements
  • Numbers
  • Strings
  • Methods
  • C# Syntax
  • Model View Controller
  • Common Commands
  • Directories and Files
  • The Command Shell
  • JavaScript Objects and Conditionals
  • JavaScript Arrays and Loops
  • JavaScript Functions
  • Data Types and Variables
  • 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?
  • PHP Inventory
  • PHP Includes
  • Database Security
  • Queries & Results
  • Getting Started with PDO
  • Day 3: Getting Creative
  • Day 2: Advanced Selecting
  • Day 1: Joining Tables
  • Orientation: Selecting Data
  • Subqueries
  • Updating and Deleting Records
  • Reading and Writing Reports
  • Creating Records
  • Project Setup
  • Filtering Inputs and Escaping Outputs in PHP
  • $_GET and $_POST
  • PHPDB Stage 5: Search
  • PHPDB Stage 4: Pagination with LIMITs
  • PHPDB Stage 3: Using Relational Data
  • Set Operations
  • Joining Table Data with SQL
  • Table Relationships
  • Database Keys
  • Database Normalization
  • PHPDB Stage 2: Querying the Database with PHP
  • PHPDB Stage 1: Databases and PHP
  • Handling Errors When Manipulating Data
  • Deleting Data from a Database
  • Updating Data in a Database
  • Adding Data to a Database
  • Date and Time Functions
  • Aggregate and Numeric Functions
  • Working with Text
  • Ordering, Limiting and Paging Results
  • Finding the Data You Want
  • Parsing Specific Formats
  • Basic File Handling
  • Browser Persistent Data with PHP
  • 150th Techdegree Peer Review
  • 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
  • WordPress User Roles
  • WordPress Plugins
  • WordPress Themes
  • The WordPress Customizer
  • Managing Media in WordPress
  • Managing Content in WordPress
  • Installing WordPress Locally
  • What Is WordPress?
  • Vulnerabilities: Configuration, Components, and Logging
  • Vulnerabilities: Authentication, Access, and Sensitive Data
  • 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!
  • MASH CSS
  • MASH JavaScript
  • MASH HTML
  • Treehouse Club - JavaScript
  • Treehouse Club - CSS
  • Welcome to the Treehouse Club
  • WWW
  • The Internet
  • Computer Basics
  • Computer Languages
  • Page Layout
  • Design Patterns
  • Save for the Web
  • Adding Images and a Mockup
  • Logo Design
  • Creating a Wireframe
  • Introducing Adobe Illustrator
  • Team Collaboration in Figma
  • Prototyping Designs in Figma
  • Introducing Figma
  • Improving Usability
  • Mobile Usability
  • Website Usability
  • What is Usability?
  • Testing for Accessibility
  • Mobile Accessibility
  • Accessible UI Patterns
  • Semantic HTML and WAI-ARIA
  • WCAG 2.0 (and Other Standards)
  • Access for Everybody
  • Combine and Minify Assets
  • Optimize Assets
  • Measuring Performance
  • Planning for Performance
  • Chrome DevTools Basics
  • Responsive Theory
  • Media Queries
  • Responsive Patterns
  • Rehearsal and Delivery
  • Creating and Refining
  • Preparing to Present
  • Putting It All Together
  • Embracing the Process
  • Curating the Work
  • Portfolio Goals
  • Demystifying the Portfolio
  • Final Project: Create a Typographic Site
  • Laying Out Type for the Web
  • Basic Web Typography
  • How to Choose and Use Webfonts
  • Introduction to Typography
  • Create a Banner Ad
  • Hello, Photoshop!
  • Digital Media Basics
  • Design Foundations Final
  • Becoming a Problem Solver
  • Understanding Aesthetics
  • Introduction to Design
  • Protecting and Sharing Your Work
  • Licensing
  • Fair Use and Public Domain
  • Getting Started with Copyright
  • Implementing UX Content
  • Creating UX Content
  • UX Content Attributes
  • UX Content Basics
  • Applying IA
  • Evaluating IA
  • Main Principles
  • What is Information Architecture?
  • Quantitative Methods
  • Usability Studies
  • Qualitative Studies
  • Measuring Your Designs
  • Making sense of it all
  •  Learning activity: Interviewing
  • Learning activity: Field Observation
  • Learning activity: Experience Sampling
  • Finding participants for your learning activity
  • Solving an Important Problem
  • Planning Your Users’ Journey
  • Strategy: Determining Goals for your Product
  • Understanding Our Users
  • Intro to User Experience (UX) Design
  • The Design Solution
  • The Design Problem
  • Design Principles
  • What is Product Design?
  • Interactivity in Adobe XD
  • Prototyping Designs in Adobe XD
  • Introducing Adobe XD
  • Persuasive Patterns
  • UI Patterns
  • Designing with Patterns
  • Exploration
  • Discovery
  • How to Make Wireframes in Adobe XD
  • How to Make Wireframes in Sketch
  • How to Make Wireframes in Balsamiq
  • How to Make Wireframes on Paper
  • What is Wireframing?
  • How to Critique Design
  • Telling the Story
  • Designing for your User’s "To-be"
  • Understanding your User’s “As-is” Scenario
  • Becoming Acquainted with Your User
  • Becoming a Design Thinker
  • Getting Started with Express
  • 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
  • JavaScript Frameworks, Libraries, and Developer Roles
  • JavaScript Outside of the Browser
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Captioning Video
  • Media Basics
  • 100th Techdegree Peer Review
  • Reformatting User Input
  • Validating a Form with Regular Expressions
  • Regular Expressions
  • Create Function Using Arrow Syntax
  • Using Template Literals
  • Defining Variables With let and const
  • Building Forms With Bootstrap
  • Using Bootstrap Components
  • Responsive Layouts With the Bootstrap Grid
  • Getting to Know Bootstrap 4
  • Combining Array Methods
  • Array Manipulation
  • Practice forEach
  • Array Iteration
  • AJAX and APIs
  • jQuery and AJAX
  • Programming AJAX
  • AJAX Concepts
  • Callbacks and the DOM
  • Callbacks with Timers
  • Introduction to Callback Functions
  • Practicing Getters and Setters
  • Getters and Setters
  • Practicing Classes
  • Working with Classes in JavaScript
  • Object Basics
  • Introduction to Object-Oriented JavaScript
  • Going Further with Grid Layout
  • 50th Techdegree Peer Review
  • Flexible Sized Grids
  • Introducing Grid Layout
  • Keyframe and Line Drawing Animations
  • Transitions and Transforms
  • Creating an SVG
  • Introduction to SVG
  • 25th Techdegree Peer Review
  • 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
  • 10th Techdegree Peer Review
  • 5 Star Techdegree Reviewer
  • 5th Techdegree Peer Review
  • Using a jQuery Carousel
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • Working with jQuery Collections (2017)
  • Understanding jQuery Events and DOM Traversal (2017)
  • Introducing jQuery (2017)
  • JavaScript Objects
  • JavaScript Arrays
  • JavaScript Loops
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • Introducing JavaScript
  • 1st Techdegree Peer Review
  • Add Reusable Logic to Your Sass
  • Write Smart and Efficient CSS with Sass
  • Improve Your Workflow with Sass
  • Getting Started with Sass
  • Adding 3D Effects with CSS
  • Getting Started with CSS Transforms
  • Transition Timing Functions and Delays
  • Getting Started with CSS Transitions
  • GitHub and Other Remote Repositories
  • Managing Committed Files
  • First Commits
  • Finishing the Game
  • Introducing JavaScript
  • JavaScript Tools and Workflows
  • JavaScript is Everywhere
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Structuring Tables
  • Table Basics
  • Art Direction with the Picture Element
  • Image Delivery with Srcset and Sizes
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • 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
  • Using Slack Effectively
  • Introducing Slack for the Techdegree
  • Newbie