tsconfig.json

{
  "extends": "@tsconfig/svelte/tsconfig.json",
  "include": [
    "src",
    "types"
  ],
  "exclude": [
    "node_modules"
  ],
  "compilerOptions": {
    "lib": [
      "DOM",
      "ES2015",
      "ES2016",
      "ES6"
    ],
    "module": "esnext",
    "target": "esnext",
    "typeRoots": [
      "./node_modules/@types"
    ],
    "moduleResolution": "node",
    "jsx": "preserve",
    "baseUrl": "./",
    /* paths - If you configure Snowpack import aliases, add them here. */
    "paths": {},
    /* noEmit - Snowpack builds (emits) files, not tsc. */
    "noEmit": true,
    /* Additional Options */
    "strict": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "resolveJsonModule": true,
    "useDefineForClassFields": true,
    "allowSyntheticDefaultImports": true,
    "importsNotUsedAsValues": "error",
    "types": ["svelte", "@types/snowpack-env", "jest"]
  }
}