tsconfig.json

{
    "compilerOptions": {
        "declaration": true,
        "declarationDir": "types",
        "declarationMap": true,
        "baseUrl": "./",
        "paths": {
            "@/*": ["src/*"]
        },
        "module": "ES2015",
        "rootDir": "src",
        "preserveConstEnums": false,
        "sourceMap": true,
        "downlevelIteration": false,
        "isolatedModules": true,
        "esModuleInterop": true,
        "importHelpers": true,
        "lib": [
            "ES2015",
            "DOM"
        ],
        "target": "ES2015",

        "noEmitOnError": true,
        "moduleResolution": "node",
        "removeComments": false,
        "pretty": true,

        "noImplicitReturns": true,
        "allowSyntheticDefaultImports": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "forceConsistentCasingInFileNames": true,
        "noUncheckedIndexedAccess": true,
        "strict": true,
        "noFallthroughCasesInSwitch": true,
        "allowUnreachableCode": false
    },
    "include": [
        "src/index.ts"
    ],
    "exclude": [
        "**/node_modules/",
        "**/.*",
        "dist"
    ],
    "$schema": "https://json.schemastore.org/tsconfig"
}