tsconfig.json

{
  "compilerOptions": {
    "alwaysStrict": true /* Parse in strict mode. */,
    "esModuleInterop": true /* matches compilation setting */,
    "jsx": "preserve" /* Compile to react */,
    "lib": [
      "dom",
      "esnext"
    ] /* List of library files to be included in the type checking. */,
    "module": "esnext" /* Specifies the type of module to type check. */,
    "moduleResolution": "node" /* Determine how modules get resolved. */,
    "outDir": "dist" /* Directory to compile output to */,

    /* Strict Type-Checking Options, optional, but recommended. */
    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
    "noUnusedLocals": true /* Report errors on unused locals. */,
    "noUnusedParameters": true /* Report errors on unused parameters. */,
    "strict": true /* Enable all strict type-checking options. */,
    "target": "esnext" /* The type checking input. */
  },
  "includes": ["src"] /* Folder to compile files from */
}