{ "compilerOptions": { // Enable top-level await, and other modern ESM features. "target": "ESNext", "module": "ESNext", // Enable node-style module resolution, for things like npm package imports. "moduleResolution": "node", // Enable JSON imports. "resolveJsonModule": true, // Enable stricter transpilation for better output. "isolatedModules": true, // Astro will directly run your TypeScript code, no transpilation needed. "noEmit": true, // Enable strict type checking. "strict": true, // Error when a value import is only used as a type. "importsNotUsedAsValues": "error", // Report errors for fallthrough cases in switch statements "noFallthroughCasesInSwitch": true, // Force functions designed to override their parent class to be specified as `override`. "noImplicitOverride": true, // Force functions to specify that they can return `undefined` if a possibe code path does not return a value. "noImplicitReturns": true, // Report an error when a variable is declared but never used. "noUnusedLocals": true, // Report an error when a parameter is declared but never used. "noUnusedParameters": true, // Force the usage of the indexed syntax to access fields declared using an index signature. "noUncheckedIndexedAccess": true, // Report an error when the value `undefined` is given to an optional property that doesn't specify `undefined` as a valid value. "exactOptionalPropertyTypes": true } }