Mirror Courses

Already know a programming language? Learn a new one 2-3x faster by mapping concepts you already understand.

How Mirror Courses Work

Full Lessons

Complete lessons teaching the target language concepts in depth, not just code snippets.

Mirror Cards

Special callouts that connect new concepts to what you already know from your language.

Common Pitfalls

Warnings about mistakes commonly made by developers coming from your background.

Step 1: I already know

Available Mirror Courses

JavaScript to TypeScript

10 lessons · ~6h

JavaScript to Java

10 lessons · ~8h

JavaScript to C#

10 lessons · ~8h

JavaScript to Go

10 lessons · ~7h

JavaScript to C

10 lessons · ~7h

JavaScript to Python

10 lessons · ~6h

Python to JavaScript

11 lessons · ~6h

Python to Java

11 lessons · ~8h

Python to C#

10 lessons · ~7h

Python to Go

10 lessons · ~7h

Python to C

10 lessons · ~6h

TypeScript to Python

Pro

11 lessons · ~6h

Python to TypeScript

Pro

10 lessons · ~6h

TypeScript to Java

10 lessons · ~7h

TypeScript to C#

10 lessons · ~6h

TypeScript to Go

10 lessons · ~7h

Java to C

10 lessons · ~5h

C to Java

10 lessons · ~5h

Java to TypeScript

10 lessons · ~7h

Java to Python

10 lessons · ~7h

Java to Go

10 lessons · ~7h

C# to Java

10 lessons · ~6h

C# to Python

10 lessons · ~6h

C# to Go

10 lessons · ~6h

Go to TypeScript

10 lessons · ~6h

C to Python

10 lessons · ~6h

C to Go

10 lessons · ~6h

C to C#

10 lessons · ~6h

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