tsconfig.json "include" and "files" section

[RizqiSyahrendra]

I wonder why did you use this at tsconfig.json :

{
 ...,
 "include": [
    "src/tests/**/*.ts"
  ],
  "files": [
    "src/index.ts"
  ]
}

Shouldn't we need typescript to recognize all inside "src" instead?