Learn TypeScript 3 by Building Web Applications

Compiling manually using the TypeScript compiler

Now let’s try to use tsc (the TypeScript compiler) to manually compile our code. Go back to the Terminal and run tsc:

As you can see, there are many options. You can list all the available options using tsc --all. We'll discover some of those as we go about building cool applications together but, for now, let's focus on the task at hand: compiling a single file. You can do this by executing tsc hello-world.ts.

If all goes well, you should see nothing. But TypeScript should have transpiled your code to JavaScript.

By convention, TypeScript generates a .js file with the same name as the input ...