Cheat sheets

Cheat sheets for programming subjects, one page each, from Novice to Master: the commands, syntax and ideas you reach for every day.

Angular

Templates and Interpolation · Novice
The Structure of a Component · Novice
Angular Components: an overview · Novice
Project Structure · Novice
Creating an Angular App · Novice
Linking to Other Pages · Apprentice
Event Binding and Two-Way Binding · Apprentice
Passing Data with input() · Apprentice
Defining the Routes · Apprentice
Providing the Router · Apprentice
Services and inject() · Apprentice
Component Lifecycle · Apprentice
Signals and computed · Apprentice
@if and @for · Apprentice
Property Binding · Apprentice
Creating a Shared Data Service · Journeyman
Route Parameters in Angular: an overview · Journeyman
Sending Messages with output() · Journeyman
Login and Register in Angular · Journeyman
Reading Query Parameters · Journeyman
Query Parameters in Angular: an overview · Journeyman
Defining the Links · Journeyman
Reading the Route Parameter · Journeyman
Signals and Observables Together · Journeyman
Observables and RxJS Basics · Journeyman
HttpClient in Angular · Journeyman
Why Share Data Between Components? · Journeyman
Route Guards and HTTP Interceptors · Freelancer

API

History of Client-Server Architecture · Journeyman

ASP.NET Core

What is ASP.NET Core · Novice
Creating an MVC Project · Apprentice
Layouts and _ViewStart · Apprentice
Authentication vs Authorization · Apprentice
Model Binding and Validation: an overview · Apprentice
Client-Side Validation · Apprentice
HTTP Status Codes: an overview · Apprentice
Web APIs with Controllers: an overview · Apprentice
Your First Minimal API · Apprentice
The MVC Pattern in ASP.NET Core · Apprentice
Razor Syntax and Tag Helpers · Journeyman
Controllers and Actions · Journeyman
Passing a Model to a View · Journeyman
GET and POST Actions · Journeyman
Model Binding a Form · Journeyman
Route Values and the Query String · Journeyman
Conventional and Attribute Routing · Journeyman
Cookie Authentication and [Authorize] · Journeyman
Registering Services · Journeyman
Data Annotations and ModelState · Journeyman
Securing a Web API with JWT Bearer · Journeyman
POST · Journeyman
Creating an API Controller · Journeyman
Deploying a Web API and an Angular App to Azure · Journeyman
Returning a Partial View from an Action · Journeyman
MVC Partials with fetch: an overview · Journeyman
Returning ActionResult<T> · Journeyman
PUT and DELETE · Journeyman
GET · Journeyman
Partial Views · Journeyman
Session State · Journeyman
Handling Global Exceptions in ASP.NET Core · Freelancer

C#

C# Data Types · Novice
Introduction to Arrays · Novice
What is a Variable · Novice
Your First C# Program · Novice
Understanding the String Class · Novice
String Interpolation · Novice
While Loop · Novice
If · Novice
Arithmetic and Expressions in C# · Novice
Windows Setup for C#: an overview · Novice
Network Communication, IP Addresses and Ports · Novice
DRY Code in C# · Novice
Working with Objects in C#: an overview · Novice
For Loop · Novice
Array Basics · Novice
Introduction to Methods: an overview · Novice
Switch · Apprentice
Switch Expressions and the Conditional Operator · Apprentice
Foreach Loop · Apprentice
Organizing Code into Methods · Apprentice
Multiple Conditions · Apprentice
Do-While Loop · Apprentice
Useful String Methods · Apprentice
Converting Data Types in C# · Apprentice
But Arrays Can Be Tedious · Apprentice
Common String Tasks · Apprentice
What is a Constructor? · Apprentice
Methods on a Class · Apprentice
What Arrays Solve · Apprentice
Dictionaries in C# · Apprentice
Writing Tests · Apprentice
Inheritance in C# · Apprentice
What is a Dependency · Apprentice
Adding Test Classes · Apprentice
Polymorphism in C# · Apprentice
Test-Driven Development · Apprentice
Lambda Expressions · Apprentice
Abstraction in C#: an overview · Apprentice
Exceptions in C# · Apprentice
Reading a File in C# · Apprentice
File, FileInfo and Path · Apprentice
Working with Files in C#: an overview · Apprentice
What is a Design Pattern · Apprentice
Software Interfaces · Apprentice
Inheritance Review · Apprentice
Introduction to Inheritance in C# · Apprentice
Planning Unit Tests · Apprentice
The MSTest Framework · Apprentice
Working with List<T> · Apprentice
Introduction to List<T> · Apprentice
Auto-Properties and Read-Only Properties · Apprentice
Fields vs Properties · Apprentice
Writing the Class in C# · Apprentice
Defining an Object · Apprentice
Practice: Creating Methods · Apprentice
Data Access Objects · Journeyman
Mapping Data to Models · Journeyman
ADO.NET Objects · Journeyman
Example: a Product DAO · Journeyman
Configure the Project for SQL Server · Journeyman
Querying a Database with ADO.NET: an overview · Journeyman
Inheritance and Constructors · Journeyman
Calling a Stored Procedure from C# · Journeyman
Overriding Methods · Journeyman
Layers: Models, Services, Controllers · Journeyman
HashSet · Journeyman
Constructor Injection · Journeyman
Query and QuerySingle · Journeyman
Parameters and Mapping to Models · Journeyman
Appending to a File · Journeyman
Solving Multiple Inheritance · Journeyman
Writing Log Entries · Journeyman
Defining Interfaces · Journeyman
Adding Abstraction · Journeyman
A Simple API Client · Journeyman
Iterator · Journeyman
Factory Method · Journeyman
Common LINQ Methods · Journeyman
JSON Web Tokens · Journeyman
Hashing and Encryption · Journeyman
HttpClient Basics · Journeyman
Reading JSON into Models · Journeyman
Tasks, async and await · Journeyman
Query Syntax vs Method Syntax · Journeyman
What is LINQ? · Journeyman
Creating the LogService · Journeyman
Logging Exceptions in C#: an overview · Journeyman
Writing a File: StreamWriter's Defaults · Journeyman
Summary · Journeyman
Execute: Insert, Update and Delete · Journeyman
Why Dapper · Journeyman
Stacks · Journeyman
Queues · Journeyman
Polymorphism with Base Classes · Journeyman
Mapping Rows to Models · Journeyman
Working with User Input · Journeyman
Full Example · Journeyman
Polymorphism with Interfaces · Freelancer

Containers

Windows + WSL + Docker · Apprentice
Intro to Docker · Apprentice
Dockerfile Essentials · Journeyman
Docker CLI Essentials · Journeyman
Hosting Postgres in Docker · Journeyman
Docker vs Kubernetes · Freelancer

CSS

CSS · Novice
What is Bootstrap? · Novice
Put Your Page Online for Free · Novice
The Box Model: Content, Padding, Border and Margin · Novice
Fonts and Text: Family, Size, Weight and Spacing · Novice
Pictures from CSS: Background Images · Novice
Color: Names, Hex, rgb() and hsl() · Novice
Type, Class and ID Selectors · Novice
Hooks for CSS: the class and id Attributes · Novice
Structure Elements: header, nav, main, section and footer · Novice
The Page Skeleton, and Three Places CSS Can Go · Novice
Elements, Tags and Attributes · Novice
Look Inside Any Page with Developer Tools · Novice
Your First CSS Rule · Novice
Setup: VS Code, a Browser and Node.js · Novice
What You Can Build with CSS · Novice
Absolute and Fixed · Apprentice
FlexBox and Justify Content · Apprentice
Static and Relative · Apprentice
Sticky · Apprentice
Utility Classes · Apprentice
Components · Apprentice
The Grid System · Apprentice
Transforms: Move, Turn and Grow · Apprentice
Transitions: Smooth Changes · Apprentice
Custom Properties: Variables in CSS · Apprentice
Finishing Touches: Rounded Corners, Shadows and Gradients · Apprentice
Hierarchy, Alignment and Whitespace · Apprentice
Responsive Design and the Viewport · Apprentice
CSS Grid: Rows and Columns · Apprentice
Flexbox Alignment: justify-content and align-items · Apprentice
Flexbox: Lining Things Up in a Row or a Column · Apprentice
Positioning: fixed and sticky · Apprentice
Positioning: relative and absolute · Apprentice
Normal Flow and the display Property · Apprentice
Browser Defaults and a Small Reset · Apprentice
Pseudo-Elements: ::before, ::after and ::marker · Apprentice
Pseudo-Classes: :hover, :focus-visible, :nth-child() and More · Apprentice
Attribute Selectors · Apprentice
Combinators: Descendant, Child and Sibling · Apprentice
Inheritance: What Children Get from Their Parents · Apprentice
Specificity: Scoring a Selector · Apprentice
The Cascade: How the Browser Picks a Winner · Apprentice
Units: px, rem, em, % and Viewport Units · Apprentice
box-sizing: Making Width Mean What You Think · Apprentice
Margin, Padding and Border in Practice · Apprentice
Web Fonts: Using Any Font You Like · Apprentice
Grid · Journeyman
Mobile-First Layouts with Bootstrap · Journeyman
Will It Work Everywhere? Browser Support and @supports · Journeyman
Common Layout Bugs and How to Fix Them · Journeyman
Debugging Layouts with Developer Tools · Journeyman
Bootstrap and Tailwind: What a Framework Gives You and What It Costs · Journeyman
Utility Classes and Utility-First CSS · Journeyman
Naming Things: BEM and Component Classes · Journeyman
Motion That Respects the Reader: prefers-reduced-motion · Journeyman
Keyframe Animations · Journeyman
Light and Dark Themes with prefers-color-scheme · Journeyman
Design Tokens: a Small Design System · Journeyman
Color That Works: Palettes and Contrast · Journeyman
Type That Reads Well: Scale, Line Length and Pairing · Journeyman
Fluid Type and Spacing with clamp() · Journeyman
calc(), min() and max(): Math in CSS · Journeyman
Responsive Images: max-width, object-fit and srcset · Journeyman
Mobile First: Start Small, Then Add Room · Journeyman
Media Queries and Breakpoints · Journeyman
Flexbox or Grid? Choosing the Right Tool · Journeyman
Grids That Fill the Space: repeat(), minmax() and auto-fit · Journeyman
Placing Items: Lines, Spans and Named Areas · Journeyman
Flexbox Wrapping and gap · Journeyman
Flexbox Sizing: flex-grow, flex-shrink and flex-basis · Journeyman
Stacking: z-index and What Sits on Top · Journeyman
Cascade Layers with @layer · Journeyman
CSS Nesting · Journeyman
Modern Selectors: :is(), :where() and :has() · Journeyman
CSS Performance: What Slows a Page, and Critical CSS · Freelancer
Container Queries: Components That Fit Their Space · Freelancer
Subgrid: Lining Up Cards · Freelancer

Data

ETL - Moving from OLTP to OLAP · Apprentice

Data Structures

Setup: VS Code and Your Language · Novice
800 Lost Items and a Line at the Desk: What a Data Structure Is · Novice
Arrays and Lists · Novice
Why "Play Track 750,000" Is Instant and "Find Golden Hour" Isn't: Memory as Mailboxes · Novice
What You Can Build with Data Structures · Novice
Loops and Methods, Five Ways · Novice
Twice the Stuff, How Much More Work? · Novice
Why the Library Check Slows Down and Play Doesn't: O(1) and O(n) · Novice
How Slow Will It Get? Counting Steps · Novice
How Many Times Can You Halve a Million? O(log n) · Novice
Will It Survive a Million Users? The Doubling Table · Novice
Why the Duplicates Button Crawls: O(n²) · Novice
Classes and Objects · Apprentice
Generics: a Box for Any Type · Apprentice
References: Two Names, One Object · Apprentice
Why Does This Loop Take Seconds? Your Language's List · Apprentice
Jump to Song 500: Arrays · Apprentice
Fast in the Demo, Slow for Users: Best, Worst and Average · Apprentice
Is It Really Slow? Measure Your Own Code · Apprentice
"Play Next" Without Moving Everyone: Linked Lists · Apprentice
Are Two Loops Twice as Slow? Why O(2n) Is Still O(n) · Apprentice
The Ninth Song Won't Fit: Growing Arrays · Apprentice
Sorting a Million Songs, and the Playlist You Can't Compute: O(n log n) and O(2ⁿ) · Apprentice
Answer It in One Step: Trading Memory for Time · Apprentice
Reaching the Last Song, and Going Back One: Doubly Linked Lists · Apprentice
First Come, First Served at Rush Hour: Queues · Apprentice
Undo the Last Thing First: Stacks · Apprentice
Is That Song in My Library? Linear Search · Apprentice
Redo, the Back Button and Matching Brackets: Stacks at Work · Apprentice
One Song in a Million, in 20 Looks: Binary Search · Apprentice
The Folder Tool That Never Stopped: Base Cases · Apprentice
Where Do the Waiting Calls Wait? The Call Stack · Apprentice
Putting the Leaderboard in Order: Selection Sort · Apprentice
One New Score on a Sorted Leaderboard: Insertion Sort · Apprentice
Finding Maya's Coat Without a Ticket: Hash Tables · Apprentice
How Big Is This Folder? Recursion · Apprentice
The Front Desk Finds You in One Scan: Dictionaries · Apprentice
Have I Seen This Before? Sets · Apprentice
Who Works Under Whom? Trees · Apprentice
Is Adding a Song Slow? Amortized Cost · Journeyman
In Your Textbook: Big-O, Big-Θ and Big-Ω · Journeyman
Arrays vs Linked Lists · Journeyman
Asking the Same Question Twice: Memoization · Journeyman
Sections Inside Sections: Recursion on Nested Data · Journeyman
Sorting Without a Second Copy: Quicksort · Journeyman
In Your Textbook: Abstract Data Types · Journeyman
A Million Songs to Sort Before Bedtime: Merge Sort · Journeyman
Most Played, Then A to Z: Stable and Built-In Sorts · Journeyman
5,000 Folders Deep: Recursion or a Loop? · Journeyman
Cutting In, and Keeping Only the Last 100: Deques and Ring Buffers · Journeyman
The Feature Is Slow: Which Structure Fixes It? · Journeyman
Print the Chart, Count the Teams: Walking a Tree in the Right Order · Journeyman
How Many Steps Apart? Breadth-First Search · Journeyman
Who Knows Whom? When Anything Can Connect: Graphs · Journeyman
Your Turn at the Whiteboard: Solving a Problem Out Loud · Journeyman
Who Can I Reach? Depth-First Search · Journeyman
How a Phone Suggests the Next Word: Tries · Journeyman
Fair Ties, Ready-Made: Priority Queues in Your Language · Journeyman
Who's Next in the Emergency Room? Heaps · Journeyman
Are These Two Friends? Adjacency Lists and Grids · Journeyman
When a Loop Inside a Loop Is Too Slow: Hash Tables at Work · Journeyman
A Contact List That's Fast to Search and Easy to Change: Binary Search Trees · Journeyman
Why Can't the Dictionary Find Card 1042? Good Keys · Journeyman
The Sorted Import That Made Search Crawl: Why Balance Matters · Journeyman
New Problems, Your Choice · Journeyman
Can Any Sort Go Faster? The n log n Speed Limit · Freelancer
Which Course First? Topological Sort · Freelancer
The Fastest Drive, Not the Fewest Roads: Dijkstra's Algorithm · Freelancer
One Row in a Billion: B-Trees and Database Indexes · Freelancer

Developer Tools

Visual Studio · Novice
Using Finder and Working with the Terminal · Novice
IntelliJ IDEA · Novice
winget · Novice
What is a Code Editor? · Novice
VS Code · Novice
Using File Explorer · Novice
Working with the Terminal (Windows): an overview · Novice
Common Terminal Commands · Novice
Windows Terminal and Git Bash · Novice
Working with the Terminal (macOS): an overview · Novice
What is an IDE? · Novice
OS and Terminal Tools (Windows): an overview · Novice
Homebrew · Novice
.http Files in Visual Studio · Journeyman

DevOps

DevOps - Terraform - Infrastructure as Code (IaC) · Freelancer

Entity Framework Core

Dapper or EF Core? · Journeyman
Querying and Saving with EF Core · Journeyman
DbContext and Entities · Journeyman
What is an ORM? · Journeyman

Files

Git

Git and GitHub · Novice
GitHub · Novice
Git · Novice
Working with Git: an overview · Novice
What is Version Control? · Novice
Git Workflow · Apprentice
Git Feature Branching · Apprentice
The Git Workflow · Apprentice

HTML

HTML and the Power of CSS · Novice
HTML · Novice
Ordered and Unordered Lists · Novice
A First Look at CSS · Novice
Adding Pictures · Novice
Links to Other Sites · Novice
Bold, Italic and What They Mean · Novice
Paragraphs, Line Breaks and Special Characters · Novice
Headings and the Page Outline · Novice
The Page Skeleton · Novice
Attributes · Novice
Elements and Tags · Novice
Files and Folders for a Website · Novice
Setup: VS Code, a Browser and Node.js · Novice
How a Browser Shows a Page · Novice
What You Can Build with HTML · Novice
What you can build with HTML · Novice
Semantic HTML · Apprentice
Developer Tools · Apprentice
Form Validation · Apprentice
Titles, Descriptions and Search Results · Apprentice
Who Accessibility Helps · Apprentice
Video and Audio · Apprentice
Image Formats and File Size · Apprentice
Alt Text That Helps · Apprentice
Built-in Validation · Apprentice
Dropdowns, Text Areas and Suggestions · Apprentice
Checkboxes, Radio Buttons and Fieldsets · Apprentice
Input Types for Email, Numbers, Dates and More · Apprentice
Buttons · Apprentice
Text Inputs and Labels · Apprentice
How a Form Sends Data · Apprentice
Validating Your Page · Apprentice
Details and Summary: Show and Hide · Apprentice
Quotes, Dates, Code and More · Apprentice
Tables for Data · Apprentice
Description Lists · Apprentice
Div and Span: Boxes with No Meaning · Apprentice
Article, Section and Aside · Apprentice
Header, Nav, Main and Footer · Apprentice
What Semantic HTML Means · Apprentice
Put Your Site Online for Free · Apprentice
Links Within a Page, Email and Phone Links · Apprentice
Links Between Your Own Pages · Apprentice
Developer Tools: Inspecting a Page · Apprentice
Link Previews with Open Graph · Journeyman
Testing a Page for Accessibility · Journeyman
What a Screen Reader Hears · Journeyman
Icons, Stylesheets and Resource Hints · Journeyman
Loading Scripts: defer, async and Modules · Journeyman
How a Page Loads · Journeyman
Embedding Maps and Videos with iframe · Journeyman
Captions and Subtitles · Journeyman
The Picture Element · Journeyman
Responsive Images with srcset and sizes · Journeyman
Image Dimensions and Lazy Loading · Journeyman
Hints and Error Messages Everyone Can Use · Journeyman
Autocomplete and Phone Keyboards · Journeyman
Why the Server Checks Again · Journeyman
Popovers and Dialogs · Journeyman
Table Headers, Sections and Spanning Cells · Journeyman
Keeping Up with HTML · Journeyman
Structured Data with JSON-LD · Freelancer
ARIA: When HTML Isn't Enough · Freelancer
How the Browser Parses HTML · Freelancer
Templates, Slots and Custom Elements · Freelancer

Java

What is a Variable · Novice
Java Maven Project · Novice
While and Do-While Loops · Novice
Introduction to Functions · Novice
For and For-Each Loops · Novice
The String Class and Useful String Methods · Novice
Working With Data Types · Novice
If and Multiple Conditions · Novice
Arithmetic and Expressions · Novice
Introduction to Arrays and Java Array Basics · Novice
Working with Objects: What is an Object · Novice
DRY Code · Novice
Network Communication: an overview · Novice
Converting between Data Types · Apprentice
Organizing code into functions · Apprentice
Practice: Creating Functions · Apprentice
Switch · Apprentice
Defining an Object · Apprentice
Introduction to ArrayList: Working with ArrayList · Apprentice
What is a Constructor · Apprentice
What Arrays Solve, and Why They Can Be Tedious · Apprentice
Writing the Class in Java · Apprentice
JUnit Testing Framework and Planning Unit Tests · Apprentice
Writing Tests · Apprentice
Adding Test Classes · Apprentice
Introduction to Inheritance and Generalization vs Specialization · Apprentice
Lists · Apprentice
Inheritance in Java · Apprentice
Maps and Sets · Apprentice
Abstraction in OOP and Inheritance Review · Apprentice
The File Object · Apprentice
Reading a File · Apprentice
Working with Exceptions · Apprentice
Software Interfaces · Apprentice
Data Access Objects · Journeyman
Objects from a Database: Creating Data Models · Journeyman
Working with User Input · Journeyman
JDBC Objects · Journeyman
Configure the Project · Journeyman
Mapping Data to Models · Journeyman
Mapping Data to Models: an overview · Journeyman
Queues and Stacks · Journeyman
Working with Java Streams · Journeyman
Inheritance and Constructors, and Overriding Methods · Journeyman
Common Stream Functions · Journeyman
Adding Abstraction · Journeyman
Writing to a File · Journeyman
The LogService · Journeyman
What is Polymorphism? Changing Roles · Journeyman
Defining Interfaces · Journeyman
Logging Exceptions: an overview · Journeyman
Summary · Journeyman
Solving Multiple Inheritance · Journeyman
Polymorphism with Interfaces · Freelancer

JavaScript

Introducing the DOM: an overview · Novice
Java vs JavaScript: an overview · Novice
The JavaScript Runtime · Novice
Static vs Dynamic Typing · Novice
Static vs Dynamic Typing · Novice
C# vs JavaScript: an overview · Novice
The CSS You Need for JavaScript · Novice
The HTML You Need for JavaScript · Novice
What Is an Object · Novice
What Is an Array · Novice
Parameters and Return Values · Novice
What Is a Function · Novice
Counting with for · Novice
Repeating with while · Novice
Making Decisions with if and else · Novice
Booleans and Comparisons · Novice
Strings and Template Literals · Novice
Numbers and Math · Novice
Variables with let and const · Novice
JavaScript on a Web Page · Novice
Your First JavaScript Program · Novice
Setup: VS Code, a Browser and Node.js · Novice
What You Can Build with JavaScript · Novice
Manipulating the DOM Structure · Apprentice
Working with Elements: Common DOM Interactions · Apprentice
Working with Functions and Arrays · Apprentice
Form Events · Apprentice
Locating DOM elements · Apprentice
Responding to Events · Apprentice
Non-Form Events · Apprentice
Fetch vs Axios · Apprentice
Fetch · Apprentice
Summary · Apprentice
Arrow Functions · Apprentice
Arrays · Apprentice
Working with Functions · Apprentice
Getting Data with fetch · Apprentice
What a Web API Is · Apprentice
Timers: setTimeout and setInterval · Apprentice
Why Code Can't Stop and Wait · Apprentice
Remembering Data with localStorage · Apprentice
Reading What People Type · Apprentice
The Event Object · Apprentice
Responding to Clicks with addEventListener · Apprentice
Modules: import and export · Apprentice
Debugging with Breakpoints · Apprentice
Handling Errors with try, catch and finally · Apprentice
Classes: Blueprints for Objects · Apprentice
Methods and this · Apprentice
Scope: Where a Variable Can Be Seen · Apprentice
JSON: Data You Can Save and Send · Apprentice
Missing Values: null, undefined, ?. and ?? · Apprentice
Equality and Truthy Values · Apprentice
String Methods · Apprentice
Sorting Arrays · Apprentice
map and filter · Apprentice
Functions as Values: Callbacks · Apprentice
Spread and Rest · Apprentice
Destructuring · Apprentice
Arrays of Objects · Apprentice
Finding Things in an Array · Apprentice
Looping Through an Array · Apprentice
Adding and Removing Items · Apprentice
Function Expressions and Arrow Functions · Apprentice
switch and the Conditional Operator · Apprentice
Combining Conditions with And, Or and Not · Apprentice
Types and Converting Between Them · Apprentice
Using The Fetch API · Journeyman
Canceling Events · Journeyman
Using Async / Await · Journeyman
Using the fetch API · Journeyman
Async and Await · Journeyman
Put Your App Online with GitHub Pages · Journeyman
Keeping Pages Safe: XSS and innerHTML · Journeyman
Your First Tests with Vitest · Journeyman
Clean Code with ESLint and Prettier · Journeyman
A Dev Server and Build with Vite · Journeyman
npm and Packages · Journeyman
Sending Data with fetch · Journeyman
Loading, Empty and Error States · Journeyman
When fetch Fails · Journeyman
async and await · Journeyman
Promises: then, catch and finally · Journeyman
The Event Loop, in Pictures · Journeyman
Checking a Form with JavaScript · Journeyman
Drawing the Page from Your Data · Journeyman
Keyboard Users and Accessible Controls · Journeyman
Bubbling and Event Delegation · Journeyman
Throwing Your Own Errors · Journeyman
Inheritance with extends and super · Journeyman
Private Fields, Getters and Setters · Journeyman
Losing this, and How Arrow Functions Help · Journeyman
Closures at Work: Private State and Factories · Journeyman
Closures: Functions That Remember · Journeyman
Hoisting, var and the Temporal Dead Zone · Journeyman
reduce · Journeyman
Debounce and Throttle · Freelancer
Testing a Page with jsdom · Freelancer
Testing Edge Cases, Errors and Async Code · Freelancer
Waiting for Several Things at Once · Freelancer
Prototypes: What Classes Are Made Of · Freelancer

Logging

Python - Flask - Request Logging · Journeyman

OOP

OOP - Classes - Coupling and Cohesion · Apprentice
OOP - Encapsulation - objects KNOW and DO · Apprentice
OOP - Encapsulation · Apprentice
OOP - Abstraction - Simplify · Journeyman
OOP - Inheritance · Journeyman
OOP - Abstraction · Journeyman

Python

Python - Variables and Data Types · Novice
Python - Decisions - If vs Match · Novice
Python Functions · Novice
Python - Memory Management - Stack vs Heap · Apprentice
Python - OOP - Writing Classes · Apprentice
Python - Loops · Apprentice
Python - List Comprehensions · Apprentice
Python - Reading a Text file · Apprentice
Python - Reading a JSON file · Apprentice
Python - Reading a CSV file · Apprentice
Python - OOP - Classes · Apprentice
Python - Exception Handling · Apprentice
Python - Collections · Apprentice
Python - Top 5 Dunders · Journeyman
Python - Database - SQLAlchemy · Journeyman
Python - Protocols - Duck Typing · Journeyman
Python - OOP - Inheritance · Journeyman
Python - OOP - ABCs - Abastraction · Journeyman

React

React Components: an overview · Novice
Creating a React App: an overview · Novice
Project Structure · Novice
Managing Component State · Apprentice
Passing Data To a Component · Apprentice
What is a Hook · Apprentice
Component Markup Rules · Apprentice
Component Lifecycle · Apprentice
Linking to other Pages · Apprentice
Importing the Router and Defining the Routes · Apprentice
Using Props and Routes: a Review · Apprentice
Receiving Messages from Components · Journeyman
The Redux Pattern and Slices · Journeyman
Creating the Context · Journeyman
Passing Values in the Path · Journeyman
Using a Shared Data Context: Why Do We Need It? · Journeyman
Reading the QueryString · Journeyman
Adding Async Actions to the Store · Freelancer
Creating the Store · Freelancer

REST

REST - Request Response Pattern · Novice
Insomnia Cheat Sheet · Apprentice
HTTP Status Codes · Apprentice
REST - Swagger API documentation · Journeyman
Python Flask - REST APIs · Journeyman
Java Spring Boot REST APIs · Journeyman

SDLC

Agile is Iterative · Novice
SDLC - Local Development · Apprentice
SDLC - Basic Life Cycle · Journeyman
SDLC - API Deployed to Azure · Journeyman
SDLC - DevOps - It's an ETL Pipeline · Freelancer
SDLC - Deployment Tool Overload - Part 1 · Freelancer
Azure - App Service - Code vs Container · Freelancer

Software Development

What is a Full Stack Developer? · Novice
What is a Development Stack? · Novice
The Back End · Novice
How the Layers Work Together · Novice
The Database · Novice
The Front End · Novice
Diagramming: an overview · Novice
Unit Testing: an overview · Novice
SDLC · Novice
Abstraction in Art · Novice
What is a Stream? Data at Rest and Data in Transit · Apprentice
Extract Transform Load · Apprentice
Interface Definition and User Interfaces · Apprentice
Designing a User Experience · Apprentice
Common UML Diagrams · Apprentice

Spring Boot

start.spring.io · Apprentice
MVC Pattern · Apprentice
Returning HTTP Status Codes: an overview · Apprentice
RESTful Web APIs · Apprentice
Data (Model) · Journeyman
Spring Controller · Journeyman
Loading Partial Pages · Journeyman
Server-Side Validation · Journeyman
PUT and DELETE · Journeyman
POST · Journeyman
GET · Journeyman
Returning ResponseEntity<T> · Journeyman
The MVC Pattern · Journeyman
Handling Global Exceptions · Freelancer

SQL

What is a Database, and Why Do We Need One? · Novice
The SELECT Statement · Novice
The WHERE Clause · Novice
MySQL Workbench · Novice
What is an RDBMS · Novice
Choosing Your Columns · Novice
WHERE in T-SQL: an overview · Novice
TOP and ORDER BY · Novice
Simple SELECT Query and Specifying Columns · Novice
SELECT Query Structure · Novice
SELECT in T-SQL: an overview · Novice
SQL Server Management Studio · Novice
What is an RDBMS · Novice
Updating Data · Apprentice
Deleting Data · Apprentice
Common Aggregate Functions · Apprentice
Using Multiple Condition Filters · Apprentice
Inserting Data · Apprentice
ANSI Standard Syntax for DELETE · Apprentice
ANSI Standard Syntax for UPDATE · Apprentice
Joining Tables and the INNER JOIN · Apprentice
One-to-One · Apprentice
Database Relationships · Apprentice
Common SQL Functions · Apprentice
Calculations vs Aggregations, and the Common Aggregate Functions · Apprentice
Joining Tables in T-SQL: an overview · Apprentice
Calculations vs Aggregations · Apprentice
Common T-SQL Functions · Apprentice
Transactions · Apprentice
Inserting Data · Apprentice
Using Multiple Condition Filters · Apprentice
Types of Filters · Apprentice
Calculations in Columns · Apprentice
SQL - DML - DDL - DCL · Apprentice
SQL - SELECT Order of Operations · Apprentice
SQL - the ANSI SELECT Syntax · Apprentice
SQL SELECT · Apprentice
HAVING · Journeyman
Seeding and Importing Data · Journeyman
Common Sense Design · Journeyman
Create Database Scripts · Journeyman
Many-to-Many · Journeyman
OUTER JOIN · Journeyman
Joining Multiple Tables · Journeyman
Grouping Aggregations · Journeyman
Types of Sub-Queries · Journeyman
The CASE / WHEN Statement · Journeyman
Where to use Sub-Queries · Journeyman
Database Diagrams in SSMS · Journeyman
Normalization · Journeyman
Create Database Scripts in T-SQL · Journeyman
Common Sense Design · Journeyman
User-Defined Functions in T-SQL · Journeyman
Creating Stored Procedures · Journeyman
Views in T-SQL · Journeyman
CASE / WHEN in T-SQL · Journeyman
Where to Use Sub-Queries · Journeyman
Types of Sub-Queries · Journeyman
Joining Multiple Tables · Journeyman
OUTER JOIN · Journeyman
INNER JOIN · Journeyman
Grouping Aggregations · Journeyman

Testing

Unit Testing - Testing Assembly Line · Journeyman
Python - Unit Testing with Mocks · Journeyman

TypeScript

Setting up a TypeScript Project · Novice
What is TypeScript: an overview · Novice
Setting up TypeScript with Node · Novice
Adding Models · Apprentice
Interfaces · Apprentice
Typed Functions · Apprentice
Adding Models · Apprentice
React with TypeScript · Journeyman
Setup · Freelancer

Web APIs

How to read a URL · Novice
Static Websites · Apprentice
Common HTTP Status Codes · Apprentice
The Request / Response Pattern · Journeyman