Day 1 of 14 30 minStatic typesCompilingType errors
What TypeScript adds to JavaScript, how it turns into plain JavaScript, and the kinds of bugs it catches before your code ever runs.
By the end of today you can
- Explain what TypeScript is and how it relates to JavaScript
- Describe how TypeScript code is checked and compiled to JavaScript
- Read a TypeScript error message and fix the code
- Recognise the everyday bugs TypeScript catches early
What's inside
- 5 sections
- 3 diagrams and mind maps
- 7 code examples you can run
- 5-question quiz
- 1JavaScript with types
- 2From TypeScript to JavaScript
- 3Bugs TypeScript catches
- 4Types you don't have to write
- 5Using TypeScript on your own computer
Sign in free to read this lesson
Get the full lesson with diagrams, runnable code and the quiz. Your progress is saved across devices.
Sign in free