Understanding “target” and “module” in tsconfig

Question

Below is my tsconfig.json file where I have set target to es5 and module to es6

{
   "compilerOptions": {
            


        

Answer 1

To supplement the previous answer, in 2020 there are 4 TS config options that define the module resolution and compilation output:

• module.
• target.
• lib.
• moduleResolution.

The first 3 affect your output, while the latter affects the way the compiler searches for your modules to resolve them and bundle.

Here's a great and concise article about these options: Typescript confusion: tsconfig.json module, moduleResolution, target & lib explained | by Tom Medema | Medium.

Additionally, a doc about module resolution: TypeScript: Handbook - Module Resolution.