tsconfig.json

{
    "compilerOptions": {
        "jsx": "react",
        "strict": true,
        "noImplicitAny": true,
        "noEmitOnError": true,
        "noUnusedParameters": true,
        "noUnusedLocals": true,
        "noImplicitReturns": true,
        "allowUnreachableCode": false,
        "forceConsistentCasingInFileNames": true,
        "removeComments": false,
        "esModuleInterop": true,
        "sourceMap": false,
        "baseUrl": "src/",
        "target": "es5",
        "outDir": "dist",
        "lib": ["dom", "scripthost", "es2015"],
        "paths": {
            "react": ["../node_modules/preact/compat"],
            "react-dom": ["../node_modules/preact/compat"]
        }
    },
    "include": ["src/**/*"]
}