Cheatsheets

Learn JavaScript

Learn HTML

Learn Python 3

Learn Java

Learn SQL

Learn C++

Learn CSS

Learn C#

Learn React

Code Foundations - Learn How to Code

Learn PHP

Full-Stack Engineer - Fundamentals of HTML

Learn C

Learn Ruby

Learn R

Learn Intermediate JavaScript

Computer Science - CS101: Introduction to Programming

Full-Stack Engineer - Fundamentals of CSS

Learn TypeScript

Learn the Command Line

Learn Swift

Learn Go

Front-End Engineer - Fundamentals of HTML

Learn Git & GitHub

Python Fundamentals

Learn Intermediate CSS

Introduction to Cybersecurity

Full-Stack Engineer - Improved Styling with CSS

Front-End Engineer - Fundamentals of CSS

Build Websites for your Business - Beginner HTML

Learn Intermediate Python 3

Analyze Data with SQL - Getting Started with SQL

Full-Stack Engineer - Deploying Websites

Full-Stack Engineer - Making a Website Responsive

Full-Stack Engineer - JavaScript Syntax, Part II

Front-End Engineer - Improved Styling with CSS

Learn Node.js

Full-Stack Engineer - JavaScript Syntax, Part I

Learn Kotlin

Learn Bash Scripting

Front-End Engineer - Deploying Websites

Building Interactive JavaScript Websites

Front-End Engineer - Making a Website Responsive

Learn Data Analysis for your Business - Getting Started with Data Analytics

Front-End Engineer - JavaScript Syntax, Part I

Full-Stack Engineer - Building Interactive Websites

Front-End Engineer - JavaScript Syntax, Part II

Learn Data Analysis for your Business - Python Fundamentals

Introduction to DevOps

Analyze Business Data with SQL - Writing Basic Queries

Learn React Native

Create Video Games with Phaser.js - Learn JavaScript Basics

Introduction to UI and UX Design

Analyze Data with Python - Introduction to Python

Visualize Data with Python - Introduction to Python

Analyze Data with SQL - Calculating Aggregates

Analyze Data with SQL - Joining Multiple Tables

Full-Stack Engineer - Git and GitHub, Part I

iOS Developer - iOS and Swift Foundations

Front-End Engineer - Building Interactive Websites

Build Websites for your Business - Beginner CSS

Getting Started Off-Platform for Data Science

Full-Stack Engineer - Async JavaScript and HTTP Requests

Computer Science - CS102: Data Structures and Algorithms

Learn Data Analysis for your Business - Data Manipulation with Pandas

Learn Web Scraping with Beautiful Soup

Build Chatbots with Python - Introduction to Python and Chatbots

Full-Stack Engineer - React, Part II

Data Acquisition

Create a Front-End App with React - Introduction to JavaScript and Building Apps

Learn jQuery

Full-Stack Engineer - JavaScript Syntax, Part III

Introduction to IT

Full-Stack Engineer - React, Part I

Learn HTML

Build Websites for your Business - How to Build Websites on Your Own Computer

Analyze Financial Data with Python - Introduction to Python

Build Websites for your Business - Responsive Design and Accessibility

Learn the Basics of Regular Expressions

iOS Developer - Wireframing and Creating a Project in Xcode

Probability

Full-Stack Engineer - JavaScript Testing

Learn Data Analysis with Pandas

Back-End Engineer - Web Development Fundamentals

Learn Redux

Build Websites for your Business - Intermediate CSS: Colors and Typography

Build a Website with HTML, CSS, and Github Pages - Intermediate CSS: Layout and Positioning

Analyze Data with Python - NumPy: A Python Library for Statistics

Java for Programmers

Build a Machine Learning Model with Python - Supervised Learning: Regression

Learn the Basics of Machine Learning

Java: Object-Oriented Programming

Learn Asynchronous JavaScript

Build Basic Android Apps with Java - Android and Java Foundations

Build Python Web Apps with Django - Introduction to Django

Front-End Engineer - Async JavaScript and HTTP Requests

Front-End Engineer - Git and GitHub, Part I

Front-End Engineer - React, Part II

Java: Introductions and Variables

Build Websites for your Business - Advanced CSS: Flexbox and CSS Transitions

Learn Spring

Front-End Engineer - JavaScript Syntax, Part III

Introduction to Linux

Learn Data Structures and Algorithms with Python

Back-End Engineer - JavaScript Syntax, Part I

Front-End Engineer - React, Part I

Learn React Testing

Analyze Data with Python - Data Manipulation with Pandas

Full-Stack Engineer - Introduction to Back-End

Back-End Engineer - JavaScript Syntax, Part II

Visualize Data with Python - Graphing in Python

Pass the Technical Interview with Python - Welcome to Interview Prep in Python

Build a Website with HTML, CSS, and Github Pages - Finishing Touches and Publishing a Website

Build Python Web Apps with Flask - Introduction to Python

Learn p5.js

Summary Statistics

Fundamental Math for Data Science - Probability

iOS Developer - Building Code History: The User Interface

Create REST APIs with Spring and Java - Java I

C++ for Programmers

Build Web Apps with ASP.NET - Beginner C#

Front-End Engineer - JavaScript Testing

Data Wrangling and Tidying

Create a Front-End App with React - JavaScript Iterators, Objects, and Classes

Full-Stack Engineer - Build a Back-end with Express.js

Learn Responsive Design

Full-Stack Engineer - Redux

Design Databases With PostgreSQL - What Is A Database?

Build Chatbots with Python - Python Data Structures and Loops

Pass the Technical Interview with Python - Linear Data Structures

Learn JavaScript Unit Testing

Pass the Technical Interview with JavaScript - Getting Started with Data Structures

Build Python Web Apps with Flask - Introduction to Flask

Learn Data Analysis for your Business - Data Acquisition

Fundamentals of Cybersecurity - Why Cybersecurity?

Create a Front-End App with React - Introduction to React

Learn ASP.NET

Learn Advanced Python 3

Create Video Games with Phaser.js - Learn JavaScript: Function and Scope

Build Chatbots with Python - Rule-Based Chatbots

Learn Full-stack Engineering for your Business - JavaScript Syntax, Part I

Visualize Data with Python - Python for Data Analysis

Computer Architecture

Learn Data Analysis for your Business - Hypothesis Testing

Create a Front-End App with React - JavaScript Functions, Arrays, and Loops

Machine Learning Fundamentals - Feature Engineering I: Data Transformations

Fundamentals of Cybersecurity - Cyber Attacks

Analyze Business Data with SQL - Interview Prep

Foundations of Machine Learning: Supervised Learning

Java: Algorithms

Learn Intermediate Swift

Back-End Engineer - Basics of Back-End Development

Learn A-Frame (VR)

Java: Loops and Arrays

Back-End Engineer - Building Interactive Websites with JavaScript

Analyze Data with R - What Is R?

Software Design Principles

Analyze Data with Python - Data Visualization with Matplotlib

Data Visualization

Learn Raspberry Pi

Build Python Web Apps with Django - Templates in Django

Pass the Technical Interview with JavaScript - JavaScript Linear Data Structures

Differential Calculus

Create REST APIs with Spring and Java - Web and Spring Basics

Create a Back-End App with JavaScript - JavaScript Fundamentals

Linear Regression in Python

iOS Developer - Building Code History: The Question Model

Analyze Data with Python - Statistics for Data Analysis

Build Basic Android Apps with Java - Wireframing, Java Variables, and Android Studio

Create a Front-End App with React - Modern JavaScript: Modules and Browser Compatibility

Python for Programmers

Create a Professional Website with Velo by Wix

Natural Language Processing

Build Deep Learning Models with TensorFlow - Foundations of Deep Learning and Perceptrons

Full-Stack Engineer - Working with Databases

Getting Started with Natural Language Processing

Full-Stack Engineer - Database Basics

Analyze Data with Python - Hypothesis Testing with SciPy

Visualize Data with Python - Data Manipulation in Python

Full-Stack Engineer - Git and GitHub, Part II

Pass the Technical Interview with Java - Getting Started With Data Structures

Design Databases With PostgreSQL - What Can I Do With A Database?

Learn Flask

Pass the Technical Interview with Java - Linear Data Structures

Front-End Engineer - Redux

Analyze Financial Data with Python - Introduction to Pandas

Build Python Web Apps with Django - Data in Django

Build Python Web Apps with Flask - Introduction to Python Data Structures and Loops

Create an Advanced Web App with React and Redux - React

Build a Machine Learning Model with Python - Supervised Learning: Introduction to Classification

iOS Developer - Building Code History: The Game Model

Full-Stack Engineer - Designing Relational Databases

Learn Node-SQLite

How to Clean Data with Python

Linear Algebra

Analyze Data with R - Introduction To Programming In R

Learn Data Visualization with Python

Technical Interview Practice with Python

Computer Science - CS103: Databases

Design Databases With PostgreSQL - How Do I Make And Populate My Own Database?

Create REST APIs with Spring and Java - Responding to Requests

Create a Back-End App with JavaScript - JavaScript Conditionals and Functions

Build Web Apps with ASP.NET - ASP.NET I

Full-Stack Engineer - Advanced PostgreSQL

Build Deep Learning Models with TensorFlow - Getting Started with TensorFlow

Learn Statistics with NumPy

Getting More Advanced with Design

Master Statistics with Python - Variable Types

Learn the Basics of Android

Create a Back-End App with JavaScript - JavaScript Arrays, Loops, and Iterators

Build Python Web Apps with Django - Views in Django

Study for the AP Computer Science A Exam (Java) - Writing Your First Java Program

Create a Front-End App with React - React: Component State

Visualize Data with Python - Advanced Graphing in Python

Back-End Engineer - JavaScript Syntax, Part III

Create a Front-End App with React - AJAX Requests and API Interactions

Data Scientist: Natural Language Processing Specialist - Getting Started with Natural Language Processing

Create a Front-End App with React - React: Components Interacting

Back-End Engineer - Async JavaScript and HTTP Requests

Analyze Financial Data with Python - Introduction to NumPy

Learn Full-stack Engineering for your Business - JavaScript Syntax, Part II

Create REST APIs with Spring and Java - Java II

Analyze Financial Data with Python - Visualizing Finance Data

Java: Inheritance and Polymorphism

Build Basic Android Apps with Java - Programming Logic with Java

Full-Stack Engineer - Connecting Front-End to Back-End

Back-End Engineer - Git and Github, Part I

iOS Developer - Building Code History: The Final App

Build Web Apps with ASP.NET - Intermediate C#

Data Scientist: Natural Language Processing Specialist - Supervised Learning I : Regressors, Classifiers and Trees

Create Video Games with Phaser.js - Learn JavaScript: Arrays and Loops

Front-End Engineer - Linear Data Structures

Front-End Engineer - Git and GitHub, Part II

Learn Statistics with Python

Full-Stack Engineer - API Development with Swagger and OpenAPI

Create a Back-End App with JavaScript - JavaScript Objects, Modules, and Browser Compatibility

Back-End Engineer - Build a Back-End with Express.js

Learn Data Analysis for your Business - Summary Statistics

Create a Back-End App with JavaScript - Building Back-End Servers with Express.js

Full-Stack Engineer - Linear Data Structures

R for Programmers

SQL for Interview Prep

Build a Machine Learning Model with Python - Supervised Learning: Advanced Classification

Build Python Web Apps with Django - Forms in Django

Connecting Front-End to Back-End

Create Video Games with Phaser.js - Learn JavaScript: Higher Order Functions and Iterators

Java: Going Further with Classes and Methods

Foundations of Machine Learning: Unsupervised Learning

Build Python Web Apps with Flask - Introduction to SQL and Databases for Back-End Web Apps

Study for the AP Computer Science A Exam (Java) - Object-Oriented Programming

Styling a Website

Computer Science - CS104: Computer Architecture

Learn Statistics with R

Exploratory Data Analysis in Python

Build Python Web Apps with Django - Accounts and Authentication in Django

Learn Data Analysis for your Business - Data Wrangling and Tidying

Learn Recursion with Python

Full-Stack Engineer - Web Security Fundamentals

Analyze Financial Data with Python - Regression

User Authentication & Authorization in Express

Study for the AP Computer Science A Exam (Java) - Arrays and Loops

Full-Stack Engineer - Algorithms

Create REST APIs with Spring and Java - Data with JPA

Full-Stack Engineer - DevOps Fundamentals

Pass the Technical Interview with Python - Algorithmic Concepts

Create an Advanced Web App with React and Redux - Introduction to React and Redux

Study for the AP Computer Science A Exam (Java) - Conditionals and Control Flow

iOS Developer - Building Cookcademy: Exploring Recipes

Full-Stack Engineer - Complex Data Structures

Study for the AP Computer Science A Exam (Java) - A Deeper Dive Into Classes

Analyze Data with R - Statistics In R

Design Databases With PostgreSQL - How Do I Make Sure My Database Stays Fast?

Pass the Technical Interview with Python - Hash Maps

Fundamentals of Operating Systems

Pass the Technical Interview with Python - Nonlinear Data Structures

Build Chatbots with Python - Retrieval-Based Chatbots

Learn Build Tools

Build Basic Android Apps with Java - Java Arrays and Loops

Design Databases With PostgreSQL - How Do I Make Sure My Database Stays Intact?

Learn Data Analysis for your Business - Data Visualization

Front-End Engineer - Complex Data Structures

Apply Natural Language Processing with Python - Text Preprocessing

Java: Conditionals and Control Flow

Learn Emojicode

Technical Interview Practice with JavaScript

Full-Stack Engineer - Interview Skills

Full-Stack Engineer - Search & Graph Search Algorithms

API Development with Swagger and OpenAPI

Data Scientist: Natural Language Processing Specialist - Language Quantification

Fundamentals of Cybersecurity - Cybersecurity Assessment and Research

Linear Data Structures

Analyze Data with R - Data Visualization In R

Create a Back-End App with JavaScript - SQL for Back-End Development

Build Deep Learning Models with TensorFlow - Classification

Back-End Engineer - Database Basics

Front-End Engineer - Algorithms

Learn dplyr

Create a Back-End App with JavaScript - Connecting JavaScript and SQL

Analyze Data with R - Working With Data In R

Principles of Data Literacy

Pass the Technical Interview with JavaScript - Hash Maps

Fundamental Math for Data Science - Descriptive Statistics

Master Statistics with Python - Summary Statistics for Quantitative Data

Create Video Games with Phaser.js - Learn JavaScript: Objects

Front-End Engineer - Interview Skills

Learn Sorting Algorithms with Python

Cybersecurity for Business

Pass the Technical Interview with Python - Sorting Algorithms

Build a Machine Learning Model with Python - Unsupervised Learning

Pass the Technical Interview with JavaScript - Algorithmic Concepts

Create REST APIs with Spring and Java - Spring Context

Study for the AP Computer Science A Exam (Java) - Algorithms

Technical Interview Practice with Java

Back-End Engineer - Working with Databases

Learn React Router

Analyze Data with R - Introduction To Machine Learning In R

Back-End Engineer - Designing Relational Databases

Front-End Engineer - Search and Graph Search Algorithms

Learn CSS-in-JS

Build Basic Android Apps with Java - Android App Development

Pass the Technical Interview with Python - Graphs and Graph Traversals

iOS Developer - Learn Git & Github for iOS Development

Create an Advanced Web App with React and Redux - Redux

Pass the Technical Interview with Java - Hash Maps

Pass the Technical Interview with Java - Algorithmic Concepts

Pass the Technical Interview with Java - Nonlinear Data Structures

Fundamental Math for Data Science - Inferential Statistics

Learn Linear Regression in R

Build a Machine Learning Model with Python - Perceptrons and Neural Nets

Learn Data Analysis for your Business - SQL for Interview Prep

Learn ggplot2

iOS Developer - Learn the Command Line for iOS Development

Build Chatbots with Python - Deep Learning and Generative Chatbots

Pass the Technical Interview with JavaScript - Nonlinear Data Structures

Pass the Technical Interview with Java - Sorting Algorithms

Pass the Technical Interview with Python - Interview Prep and Practice Problems

How to Debug JavaScript Errors

Master Statistics with Python - Visualizing a Distribution of Quantitative Data

iOS Developer - Building Cookcademy: Adding New Recipes

Learn the Basics of Artificial Intelligence (AI) with Minimax

Text Preprocessing

Pass the Technical Interview with Java - Graph Data Structures

Hypothesis Testing with Python

Data Scientist: Natural Language Processing Specialist - Text Generation

Learn Complex Data Structures

Back-End Engineer - Git and Github, Part II

Feature Engineering - Transforming Data into Features

Fundamental Math for Data Science - Differential Calculus

Learn the Basics of Causal Inference with R

Back-End Engineer - Advanced PostgreSQL

Study for the AP Computer Science A Exam (Java) - Inheritance and Polymorphism

Fundamental Math for Data Science - Linear Algebra

Learn Handlebars

Pass the Technical Interview with JavaScript - Sorting Algorithms

Cybersecurity Analyst Interview Prep - Knowledge Review for Cybersecurity Analysts: Communication, Definitions, & Networking

Create Video Games with Phaser.js - Learn JavaScript Classes and Phaser Animations

Pass the Technical Interview with JavaScript - JavaScript Interview Prep and Algorithm Practice

Securing Express Applications - User Authentication & Authorization

Build Basic Android Apps with Java - Intermediate Java and Capstone Project

Defending Node Applications from SQL Injection, XSS, & CSRF Attacks

Language Parsing

Study for the AP Computer Science A Exam (Java) - Code Challenges

Securing Express Applications - Introduction to Securing Express Applications

Master Statistics with Python - Hypothesis Testing

Master Statistics with Python - Linear Regression

Learn Full-stack Engineering for your Business - Building Interactive Websites with JavaScript

Back-End Engineer - JavaScript Testing

Back-End Engineer - API Development with Swagger and OpenAPI

CS101 Livestream Series

Master Statistics with Python - Associations between Variables

Master Statistics with Python - Visualizing Categorical Data

Learn Full-stack Engineering for your Business - Git and Github, Part I

Build Web Apps with ASP.NET - ASP.NET II

Pass the Technical Interview with Java - Java Interview Prep and Algorithms Practice

Master Statistics with Python - Probability

Data Scientist: Natural Language Processing Specialist - Unsupervised Learning Algorithms I

How to Implement Search Algorithms with Python

Back-End Engineer - Software Design Principles

Data Scientist: Analytics Specialist - Principles of Data Literacy

Text Generation

iOS Developer - Building Cookcademy: Editing and Favoriting Recipes

Master Statistics with Python - Summary Statistics for Categorical Data

Learn Full-stack Engineering for your Business - Web Development Fundamentals

Create an Advanced Web App with React and Redux - Deployment

Data Scientist: Natural Language Processing Specialist - Supervised Learning II: SVM's, Random Forests, Naive Bayes

Learn Full-stack Engineering for your Business - SQL for Back-End Development

Learn Full-stack Engineering for your Business - JavaScript Syntax, Part III

Data Scientist: Machine Learning Specialist - Supervised Learning I : Regressors, Classifiers and Trees

Back-End Engineer - Search and Graph Search Algorithms

Learn Full-stack Engineering for your Business - Build a Back-End with Node/Express.js

iOS Developer - Non-Linear Data Structures

Data Analyst Interview Preparation - Coding Challenges

Data Scientist: Inference Specialist Career Path - Math for Inference Data Science

JavaScript Syntax, Part III

Learn Full-stack Engineering for your Business - Linear Data Structures

Back-End Engineer - Algorithms

Data Scientist: Inference Specialist Career Path - Regression for Inference Data Science

Responsive Design

Learn Full-stack Engineering for your Business - Test Driven Development with JavaScript

iOS Developer - Linear Data Structures

Data Scientist: Machine Learning Specialist - Math for Machine Learning

Data Scientist: Natural Language Processing Specialist - Deep Learning and Neural Networks

iOS Developer - Sorting Algorithms

Livestreams

Back-End Engineer - DevOps Fundamentals

Data Scientist: Analytics Specialist - Python Fundamentals for Data Science (Part II)

Redux

Learn Full-stack Engineering for your Business - React, Part I

Data Scientist: Machine Learning Specialist - Supervised Learning II: SVM's, Random Forests, Naive Bayes

Data Scientist: Natural Language Processing Specialist - Python Pandas for Data Science

Introduction to Algorithms and Linear Data Structures in Swift

Deploying with Netlify and Heroku

Data Scientist: Machine Learning Specialist - Statistics Fundamentals Part II

Data Scientist: Machine Learning Specialist - Machine Learning Fundamentals

Learn React.js: Part II

Learn Full-stack Engineering for your Business - Security, Authentication, and Authorization

Learn Full-stack Engineering for your Business - Improved Styling with CSS

Data Scientist: Analytics Specialist - Python Fundamentals for Data Science (Part I)

Intermediate CSS: CSS Grid

Securing Express Applications - Data Security

Data Scientist Interview Preparation - Coding Challenges for Data Scientist Interview Preparation

Python for Data Analytics

Securing Express Applications - Defending Node Applications from SQL Injection, XSS, & CSRF Attacks

Data Scientist: Inference Specialist Career Path - R for Programmers

Learn Full-stack Engineering for your Business - Interview Skills

Learn Full-stack Engineering for your Business - Git and GitHub, Part II

Learn Full-stack Engineering for your Business - Search & Graph Search Algorithms

Data Scientist: Analytics Specialist - Data Visualization Fundamentals with Python

Summarize a Single Feature

iOS Developer - Whiteboarding and Practice Problems

JavaScript Fundamentals

Data Scientist: Machine Learning Specialist - Learn SQL

React, Part I

Learn Full-stack Engineering for your Business - Setting Up Your Dev Environment

Data Scientist Interview Preparation - Machine Learning and Algorithms for Data Science Interviews

Introduction to Non-linear Data Structures in Swift

Learn Full-stack Engineering for your Business - Algorithms

Data Scientist: Inference Specialist Career Path - Advanced Exploratory Data Analysis

Data Scientist: Inference Specialist Career Path - Statistics Fundamentals for Data Science

Learn Full-stack Engineering for your Business - Redux

Learn Full-stack Engineering for your Business - React, Part II

Data Scientist: Natural Language Processing Specialist - Data Wrangling, Cleaning, and Tidying

Learn Full-stack Engineering for your Business - Complex Data Structures

Data Scientist: Natural Language Processing Specialist - Text Preprocessing

Data Scientist: Natural Language Processing Specialist - Build Chatbots

Machine Learning: Unsupervised Learning 🤖

Learn Full-stack Engineering for your Business - Designing Relational Databases

Learn Hardware Programming with CircuitPython

iOS Developer - Algorithmic Concepts

Back-End Engineer - Complex Data Structures

Data Scientist: Machine Learning Specialist - Exploratory Data Analysis in Python

Back-End Engineer - Linear Data Structures

Data Scientist: Machine Learning Specialist - Deep Learning and Neural Networks

Learn Full-stack Engineering for your Business - Async JavaScript and HTTP Requests

Machine Learning: Supervised Learning 🤖

Learn Full-stack Engineering for your Business - Advanced PostgreSQL

Data Scientist: Machine Learning Specialist - Unsupervised Learning Algorithms

Handling Missing Data

Data Scientist: Inference Specialist Career Path - Causal Inference Fundamentals

Back-End Engineer - Interview Skills

Back-End Engineer - Web Security Fundamentals

HTML: Tables and Forms

Data Scientist: Machine Learning Specialist - Python Fundamentals Part III

Learn Full-stack Engineering for your Business - Making a Website Responsive

Foundations of Deep Learning