The tsconfig file has a bunch of options that you can change to change the compilation process.

Some of these include

1. target

The target option in a tsconfig.json file specifies the ECMAScript target version to which the TypeScript compiler will compile the TypeScript code.

To try it out, try compiling the following code for target being ES5 and es2020

const greet = (name: string) => `Hello, ${name}!`;

• Output for ES5
• Output for ES2020

2. rootDir

Where should the compiler look for .ts files. Good practise is for this to be the src folder

3. outDir

Where should the compiler look for spit out the .js files.

4. noImplicitAny

Try enabling it and see the compilation errors on the following code -

const greet = (name) => `Hello, ${name}!`;

Then try disabling it

5. removeComments

Weather or not to include comments in the final js file