Learn React with TypeScript 3

Specifying files for compilation

There are several ways to tell the TypeScript compiler which files to process. The simplest method is to explicitly list the files in the files field:

{  "compilerOptions": {    ...  },  "files": ["product.ts", "orderDetail.ts"]}

However, that approach is difficult to maintain as our code base grows. A more maintainable approach is to define file patterns for what to include and exclude with the include and exclude fields.

The following example looks at the use of these fields:

1. Let's add the following include fields, which tell the compiler to compile TypeScript files found in the src folder and its subfolders:

{  "compilerOptions": {    ...  },  "include": ["src/**/*"]}

2. At the moment, our source files aren't in a ...