tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "lib": [
      "es2018",
      "dom"
    ],
    "module": "commonjs",
    "outDir": "lib",
    "noEmitOnError": true,
    "allowJs": false,
    "declaration": true,
    "declarationMap": false,
    "downlevelIteration": true,
    "emitDecoratorMetadata": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "importHelpers": true,
    "keyofStringsOnly": false,
    "moduleResolution": "node",
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": false,
    "removeComments": false,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "strictPropertyInitialization": false, // TODO: Should we enable this?
    "strictFunctionTypes": false, // TODO: Should we enable this?
    "stripInternal": true,
    "suppressExcessPropertyErrors": false,
    "suppressImplicitAnyIndexErrors": true,
    "useUnknownInCatchVariables": false,
    "exactOptionalPropertyTypes": false, // TODO: Should we enable this?
    "plugins": [
      {
        "name": "typescript-tslint-plugin",
        "alwaysShowRuleFailuresAsWarnings": false
      }
    ]
  },
  "exclude": [
    "**/~*",
    "**/.*",
    "example",
    "lib",
    "node_modules"
  ]
}