tsconfig-strict.json

{
  "$schema": "http://json.schemastore.org/tsconfig",
  "compilerOptions": {
    "allowSyntheticDefaultImports": false,
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "diagnostics": true,
    "forceConsistentCasingInFileNames": true,
    "importHelpers": true,
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "pretty": true,
    "strict": true
  }
}