tsconfig.json

{
	"extends": "./.svelte-kit/tsconfig.json",
	"include": ["src/**/*.d.ts", "src/**/*.ts", "src/**/*.svelte"], // remove: "src/**/*.js",
	"exclude": ["node_modules/*", "package/*", "build/*"],
	"compilerOptions": {
		"declaration": true,
		// "moduleResolution": "NodeNext", // causing issues, disabling for now (ex: SvgIcon component)
		"module": "es2020",
		"lib": ["es2020", "DOM", "ES2021.String"],
		"target": "es2020",
		/**
			svelte-preprocess cannot figure out whether you have a value or a type, so tell TypeScript
			to enforce using \`import type\` instead of \`import\` for Types.
		*/
		"importsNotUsedAsValues": "error",
		/**
			TypeScript doesn't know about import usages in the template because it only sees the
			script of a Svelte file. Therefore preserve all value imports. Requires TS 4.5 or higher.
		*/
		"preserveValueImports": true,
		"isolatedModules": true,
		"resolveJsonModule": true,
		/**
			To have warnings/errors of the Svelte compiler at the correct position,
			enable source maps by default.
		*/
		"sourceMap": true,
		"esModuleInterop": true,
		"skipLibCheck": true,
		"forceConsistentCasingInFileNames": true,
		"baseUrl": ".",
		"allowJs": true,
		"checkJs": true,
		"strict": true,
		"outDir": "package"
	}
}