Initial commit

src/lib/Counter.svelte

+<script lang="ts">
+  let count: number = 0
+  const increment = () => {
+    count += 1
+  }
+</script>
+
+<button on:click={increment}>
+  count is {count}
+</button>

src/main.ts

+import "./app.css";
+import App from "./App.svelte";
+
+const app = new App({
+  target: document.getElementById("app"),
+});
+
+export default app;

src/vite-env.d.ts

+/// <reference types="svelte" />
+/// <reference types="vite/client" />
+
+interface ImportMetaEnv {
+  readonly VITE_APP_FIREBASE_KEY: string;
+  readonly VITE_APP_MESSAGING_SENDER_ID: string;
+  readonly VITE_APP_APP_ID: string;
+  readonly VITE_APP_MEASUREMENT_ID: string;
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv;
+}

svelte.config.js

+import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";
+
+export default {
+  // Consult https://svelte.dev/docs#compile-time-svelte-preprocess
+  // for more information about preprocessors
+  preprocess: vitePreprocess(),
+};

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
+  },
+  "include": ["src/**/*.d.ts", "src/**/*.ts", "src/**/*.js", "src/**/*.svelte"],
+  "references": [{ "path": "./tsconfig.node.json" }]
+}

tsconfig.node.json

+{
+  "compilerOptions": {
+    "composite": true,
+    "module": "ESNext",
+    "moduleResolution": "Node"
+  },
+  "include": ["vite.config.ts"]
+}

vite.config.ts

+import { defineConfig } from "vite";
+import { svelte } from "@sveltejs/vite-plugin-svelte";
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  base: "./",
+  plugins: [svelte()],
+});