/ tsconfig.json
tsconfig.json
 1  {
 2    "extends": "@tsconfig/svelte/tsconfig.json",
 3    "compilerOptions": {
 4      "target": "ESNext",
 5      "useDefineForClassFields": true,
 6      "module": "ESNext",
 7      "resolveJsonModule": true,
 8      /**
 9       * Typecheck JS in `.svelte` and `.js` files by default.
10       * Disable checkJs if you'd like to use dynamic types in JS.
11       * Note that setting allowJs false does not prevent the use
12       * of JS in `.svelte` files.
13       */
14      "allowJs": true,
15      "checkJs": true,
16      "isolatedModules": true
17    },
18    "include": ["src/**/*.ts", "src/**/*.js", "src/**/*.svelte"],
19    "references": [{ "path": "./tsconfig.node.json" }]
20  }