tsconfig.json

{
    "extends": "@tsconfig/svelte/tsconfig.json",
    "compilerOptions": {
        "target": "ESNext",
        "useDefineForClassFields": true,
        "module": "ESNext",
        "resolveJsonModule": true,
        /**
        * Typecheck JS in `.svelte` and `.js` files by default.
        * Disable checkJs if you'd like to use dynamic types in JS.
        * Note that setting allowJs false does not prevent the use
        * of JS in `.svelte` files.
        */
        "allowJs": true,
        "checkJs": true,
        "isolatedModules": true,
        "baseUrl": "./",
        "paths": {
            "~/*": [
                "./*",
            ],
            "@/*": [
                "src/*",
            ],
        },
    },
    "include": [
        "src/**/*.d.ts",
        "src/**/*.ts",
        "src/**/*.js",
        "src/**/*.svelte",
    ],
    "references": [
        {
            "path": "./tsconfig.node.json"
        },
    ],
}