All Cheatsheets

Learn JavaScript

Learn HTML

Learn Python 3

Learn Java

Learn C++

Learn SQL

Learn CSS

Learn C#

Code Foundations - Learn How to Code

Learn React

Full-Stack Engineer - JavaScript Syntax, Part I

Learn PHP

Front-End Engineer - Web Development Fundamentals

Learn R

Learn C

Computer Science - CS101: Introduction to Programming

Learn Ruby

Learn the Command Line

Learn Intermediate JavaScript

Learn Swift

Full-Stack Engineer - JavaScript Syntax, Part II

Learn TypeScript

Learn Go

Data Scientist - Python Fundamentals

Build a Website with HTML, CSS, and Github Pages - Beginner HTML

Learn Git & GitHub

Introduction to Cybersecurity

Analyze Data with SQL - Getting Started with SQL

Learn Intermediate CSS

Learn Intermediate Python 3

Front-End Engineer - Improved Styling with CSS

Learn Kotlin

Learn Node.js

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

Full-Stack Engineer - Git and Github, Part I

Learn Bash Scripting

Building Interactive JavaScript Websites

Front-End Engineer - Making a Website Responsive

Full-Stack Engineer - Setting Up Your Dev Environment

Analyze Data with Python - Introduction to Python

Analyze Data with SQL - Writing Basic Queries

Build Chatbots with Python - Introduction to Python and Chatbots

Visualize Data with Python - Introduction to Python

Data Analyst - Python Fundamentals

Probability

Getting Started Off Platform for Data Science

Build a Website with HTML, CSS, and Github Pages - Beginner CSS

Front-End Engineer - JavaScript Syntax, Part I

Analyze Data with SQL - Calculating Aggregates

Learn React Native

Full-Stack Engineer - Building Interactive Websites with JavaScript

Full-Stack Engineer - Improved Styling with CSS

Create Video Games with Phaser.js - Learn JavaScript Basics

Analyze Data with SQL - Joining Multiple Tables

Full-Stack Engineer - Making a Website Responsive

Front-End Engineer - JavaScript Syntax, Part II

Analyze Financial Data with Python - Introduction to Python

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

Learn jQuery

Data Scientist - Data Acquisition

Data Analyst - Data Manipulation with Pandas

Computer Science - CS102: Data Structures and Algorithms

Learn Web Scraping with Beautiful Soup

Back-End Engineer - Setting Up Your Dev Environment

Learn the Basics of Machine Learning

Build Basic Android Apps with Java - Android and Java Foundations

Learn the Basics of Regular Expressions

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

Full-Stack Engineer - JavaScript Syntax, Part III

Build iOS Apps with SwiftUI - iOS and Swift Foundations

Learn Data Analysis with Pandas

Full-Stack Engineer - React, Part II

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

Build Websites for your Business - Responsive Design and Accessibility

Java: Object-Oriented Programming

Learn Redux

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

Back-End Engineer - JavaScript Syntax, Part I

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

Full-Stack Engineer - React, Part I

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

Learn Asynchronous JavaScript

Learn p5.js

Front-End Engineer - Building Interactive Websites

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

Analyze Data with Python - Data Manipulation with Pandas

Java for Programmers

Fundamental Math for Data Science - Probability

Java: Introductions and Variables

Build a Website with HTML, CSS, and Github Pages - Advanced CSS: Flexbox and CSS Transitions

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

Build Python Web Apps with Django - Introduction to Django

Data Scientist - Summary Statistics

Learn Spring

Full-Stack Engineer - Build a Back-End with Node/Express.js

Build iOS Apps with SwiftUI - Wireframing and Creating a Project in Xcode

Front-End Engineer - JavaScript Syntax, Part III

Create REST APIs with Spring and Java - Java I

C++ for Programmers

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

Build Chatbots with Python - Python Data Structures and Loops

Front-End Engineer - React, Part II

Data Scientist - Data Wrangling and Tidying

Back-End Engineer - JavaScript Syntax, Part II

Learn React Testing

Exploratory Data Analysis in Python

Create a Professional Website with Velo by Wix

Java: Algorithms

Build Websites for your Business - Finishing Touches and Publishing a Website

Front-End Engineer - React, Part I

Pass the Technical Interview with Python - Linear Data Structures

Build Chatbots with Python - Rule-Based Chatbots

Learn Data Structures and Algorithms with Python

Learn Full-stack Engineering for your Business - Redux

Learn Statistics with Python

Front-End Engineer - Async JavaScript and HTTP Requests

Learn Responsive Design

Front-End Engineer - Command Line, Git, GitHub

Software Design Principles

Analyze Business Data with SQL - Interview Prep

Learn How to Get Started with Natural Language Processing

Learn ASP.NET

Data Scientist - Hypothesis Testing

Differential Calculus

Build Web Apps with ASP.NET - Beginner C#

Data Analyst - Data Acquisition

Visualize Data with Python - Python for Data Analysis

Analyze Data with Python - Data Visualization with Matplotlib

Design Databases With PostgreSQL - What Is A Database?

Visualize Data with Python - Graphing in Python

Front-End Engineer - TDD Fundamentals

Java: Loops and Arrays

Analyze Data with R - What Is R?

Build Python Web Apps with Flask - Introduction to Python

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

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

Data Scientist - Foundations of Machine Learning: Supervised Learning

Linear Regression in Python

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

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

Pass the Technical Interview with Java - Linear Data Structures

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

Learn A-Frame (VR)

Analyze Data with R - Introduction To Programming In R

Build Python Web Apps with Flask - Introduction to Flask

Data Scientist - Data Visualization

Learn Data Visualization with Python

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

Learn JavaScript Unit Testing

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

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

Linear Algebra

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

Learn Statistics with NumPy

Computer Architecture

Build Python Web Apps with Django - Templates in Django

Analyze Data with Python - Statistics for Data Analysis

Create a Back-End App with JavaScript - JavaScript Fundamentals

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

Build iOS Apps with SwiftUI - Building Code History: The User Interface

Pass the Technical Interview with JavaScript - JavaScript Linear Data Structures

Learn Intermediate Swift

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

Back-End Engineer - JavaScript Syntax, Part III

Full-Stack Engineer - Git and GitHub, Part II

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

Learn Flask

Analyze Data with Python - Hypothesis Testing with SciPy

Analyze Financial Data with Python - Introduction to Pandas

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

Data Scientist - Natural Language Processing

Create an Advanced Web App with React and Redux - React

Create REST APIs with Spring and Java - Responding to Requests

Create REST APIs with Spring and Java - Java II

How to Clean Data with Python

Build Deep Learning Models with TensorFlow - Getting Started with TensorFlow

Build Basic Android Apps with Java - Programming Logic with Java

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

Front-End Engineer - Redux

Build Python Web Apps with Django - Data in Django

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

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

Back-End Engineer - Linear Data Structures

Analyze Financial Data with Python - Introduction to NumPy

Apply Natural Language Processing with Python - Getting Started with Natural Language Processing

Visualize Data with Python - Data Manipulation in Python

Technical Interview Practice with Python

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

Analyze Financial Data with Python - Visualizing Finance Data

Full-Stack Engineer - Advanced PostgreSQL

Learn the Basics of Android

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

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

Computer Science - CS103: Databases

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

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

Java: Inheritance and Polymorphism

Build Web Apps with ASP.NET - Intermediate C#

Learn Advanced Python 3

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

Connecting Front-End to Back-End

Learn Statistics with R

Learn Node-SQLite

Front-End Engineer - Linear Data Structures

Data Analyst - Summary Statistics

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

Computer Science - CS104: Computer Architecture

Analyze Data with R - Statistics In R

Visualize Data with Python - Advanced Graphing in Python

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

Build iOS Apps with SwiftUI - Building Code History: The Question Model

Data Scientist - SQL for Interview Prep

Learn Recursion with Python

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

Java: Going Further with Classes and Methods

Build Python Web Apps with Django - Views in Django

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

API Development with Swagger and OpenAPI

Back-End Engineer - Algorithms

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

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

Analyze Financial Data with Python - Regression

Data Analyst - Data Wrangling and Tidying

Create REST APIs with Spring and Java - Data with JPA

Back-End Engineer - Complex Data Structures

Build iOS Apps with SwiftUI - Building Code History: The Game Model

User Authentication & Authorization in Express

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

Data Scientist - Foundations of Machine Learning: Unsupervised Learning

Master Statistics with Python - Variable Types

Analyze Data with R - Data Visualization In R

Analyze Data with R - Working With Data In R

Build Basic Android Apps with Java - Java Arrays and Loops

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

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

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

Learn Full-stack Engineering for your Business - Interview Skills

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

Data Analyst - Data Visualization

Build Python Web Apps with Django - Forms in Django

Pass the Technical Interview with Java - Hash Maps

Back-End Engineer - Search & Graph Search Algorithms

Build Deep Learning Models with TensorFlow - Classification

Pass the Technical Interview with Java - Algorithmic Concepts

Build Chatbots with Python - Retrieval-Based Chatbots

Front-End Engineer - Complex Data Structures

Pass the Technical Interview with Java - Nonlinear Data Structures

Java: Conditionals and Control Flow

Apply Natural Language Processing with Python - Text Preprocessing

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

Pass the Technical Interview with Java - Sorting Algorithms

Pass the Technical Interview with Python - Algorithmic Concepts

Front-End Engineer - Algorithms

Learn Emojicode

Learn dplyr

Fundamental Math for Data Science - Descriptive Statistics

Pass the Technical Interview with Python - Hash Maps

Linear Data Structures

Analyze Data with R - Introduction To Machine Learning In R

Technical Interview Practice with JavaScript

Build a Machine Learning Model with Python - Unsupervised Learning

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

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

Data Analyst - SQL for Interview Prep

How to Debug JavaScript Errors

Build Basic Android Apps with Java - Android App Development

Pass the Technical Interview with Python - Nonlinear Data Structures

Learn Sorting Algorithms with Python

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

Front-End Engineer - Interview Skills

Pass the Technical Interview with JavaScript - Algorithmic Concepts

Create REST APIs with Spring and Java - Spring Context

Learn Build Tools

Build iOS Apps with SwiftUI - Building Code History: The Final App

Build an Intermediate iOS App with SwiftUI - Exploring Recipes

Create an Advanced Web App with React and Redux - Redux

Pass the Technical Interview with Java - Graph Data Structures

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

Fundamental Math for Data Science - Inferential Statistics

Pass the Technical Interview with JavaScript - Hash Maps

Learn CSS-in-JS

Fundamental Math for Data Science - Differential Calculus

Learn Linear Regression in R

Learn ggplot2

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

Fundamentals of Operating Systems

Pass the Technical Interview with Python - Sorting Algorithms

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

Securing Express Applications - User Authentication & Authorization

Learn React Router

Back-End Engineer - Test Driven Development with JavaScript

Back-End Engineer - SQL for Back-End Development

Fundamental Math for Data Science - Linear Algebra

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

Front-End Engineer - Search & Graph Search Algorithms

Learn Complex Data Structures

Securing Express Applications - Introduction to Securing Express Applications

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

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

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

Build Chatbots with Python - Deep Learning and Generative Chatbots

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

Pass the Technical Interview with JavaScript - Nonlinear Data Structures

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

Feature Engineering - Transforming Data into Features

Apply Natural Language Processing with Python - Language Quantification

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

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

How to Implement Search Algorithms with Python

Technical Interview Practice with Java

Pass the Technical Interview with Python - Graphs and Graph Traversals

Pass the Technical Interview with JavaScript - Sorting Algorithms

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

Back-End Engineer - Website Development Fundamentals

Learn Hardware Programming with CircuitPython

CS101 Livestream Series

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

Language Parsing

Apply Natural Language Processing with Python - Text Generation

Master Statistics with Python - Summary Statistics for Quantitative Data

Back-End Engineer - Designing Relational Databases

Learn Handlebars

Text Preprocessing

Master Statistics with Python - Visualizing a Distribution of Quantitative Data

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

Back-End Engineer - Building Interactive Websites with JavaScript

Learn React.js: Part II

Hypothesis Testing with Python

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

Master Statistics with Python - Probability

Data Analyst Interview Preparation - Coding Challenges

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

Master Statistics with Python - Hypothesis Testing

Text Generation

Master Statistics with Python - Associations between Variables

Master Statistics with Python - Linear Regression

Master Statistics with Python - Summary Statistics for Categorical Data

Build an Intermediate iOS App with SwiftUI - Adding New Recipes

Back-End Engineer - Security Basics

Securing Express Applications - Data Security

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

Back-End Engineer - Deploying Your Server

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

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

Livestreams

Build an Intermediate iOS App with SwiftUI - Editing and Favoriting Recipes

Back-End Engineer - Interview Skills

Machine Learning: Supervised Learning 🤖

Create an Advanced Web App with React and Redux - Deployment

Responsive Design

Deploying with Netlify and Heroku

Python for Data Analytics

Summarize a Single Feature

Machine Learning: Unsupervised Learning 🤖

Data Scientist - Foundations of Deep Learning