tsconfig.json

{
    "compileOnSave": false,
    "buildOnSave": false,
    "compilerOptions": {
        "target": "es2015",
        "module": "commonjs",
        "outDir": "./lib/",
        "moduleResolution": "node",
        "removeComments": false,
        "declaration": true,
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true,
        "lib": ["es2015", "dom"],
        "baseUrl": ".",
        "paths": {
            "*": [
                "src/*",
                "*"
            ]
        },

        "forceConsistentCasingInFileNames": true,
        "noImplicitAny": true,
        "noImplicitReturns": true,
        "noImplicitThis": true,
        "strictBindCallApply": true,
        "strictFunctionTypes": true,
        "strictNullChecks": true,
        "strictPropertyInitialization": true,
        "noUnusedLocals": true,

        "sourceMap": true,
        "jsx": "react"
    },
    "files": [
        "./src/goban.ts",
        "./src/engine.ts"
    ]
}