tsconfig.json

{
    "compilerOptions": {
        "lib": [
            "ESNext",
            "DOM"
        ],
        "module": "ESNext",
        "moduleResolution": "Node",
        "target": "ES2015",
        "strict": true,
        "alwaysStrict": true,
        "allowJs": false,
        "esModuleInterop": true,
        "skipLibCheck": true,
        "jsx": "react",
        "forceConsistentCasingInFileNames": true,
        "resolveJsonModule": true,
        "declaration": true,
        "composite": true,
        "incremental": true,
        "isolatedModules": true,
        "allowUnusedLabels": false,
        "allowUnreachableCode": false,
        "exactOptionalPropertyTypes": true,
        "noFallthroughCasesInSwitch": true,
        "noImplicitOverride": true,
        "noImplicitAny": true,
        "noImplicitThis": true,
        "noImplicitReturns": true,
        "strictBindCallApply": true,
        "strictFunctionTypes": true,
        "strictNullChecks": true,
        "useUnknownInCatchVariables": true,
        "strictPropertyInitialization": true,
        "noPropertyAccessFromIndexSignature": true,
        "noUncheckedIndexedAccess": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "verbatimModuleSyntax": true,
        "removeComments": true,
        "pretty": true,
        "outDir": "./build",
        "declarationDir": "./build/types"
    },
    "include": [
        "./src"
    ]
}