Now that you have learned about the purpose of TypeScript, it's time to get our hands dirty and start writing some code.
Before you can start learning how to use some of the basic TypeScript building blocks, you will need to set up your development environment. The easiest and fastest way to start writing some TypeScript code is to use the online editor, available on the official TypeScript website at https://www.typescriptlang.org/play/index.html:
The preceding screenshot shows the appearance of the TypeScript playground. If you visit the playground, you will be able to use the text editor on the left-hand side ...
