compilerOptions

All settings required to compile the project are mentioned here. A detailed list of all the compiler options, along with default values, can be found at this site: https://www.typescriptlang.org/docs/handbook/compiler-options.html. If we don't specify this option, then the default values will be picked up. This is the file from where we instruct TypeScript on how to handle various things such as various decorators, supporting JSX files, and transpiling pure JavaScript files. The following are some of the most commonly used options, which we can understand with respect to the preceding sample code: