diff --git a/front/src/lib/api.ts b/front/src/lib/api.ts
index d21492a..af141a9 100644
--- a/front/src/lib/api.ts
+++ b/front/src/lib/api.ts
@@ -3,14 +3,11 @@ import { type Item, type JSONResponse } from "./types";
 const API_URL = "http://127.0.0.1:8080";
 
 export async function getPopularToday(): Promise<Item[]> {
-    const response = await fetch(`${API_URL}/api/items`);
+    const response: Response = await fetch(`${API_URL}/api/items`);
     const { data, error }: JSONResponse = await response.json();
 
-    if (response.ok) {
-        if (data?.item) {
-            return data?.item;
-        }
-        throw new Error("Failed to fetch popular today");
-    }
-    throw new Error(error);
+    if (!response.ok) throw new Error(error);
+    if (!data?.item) throw new Error("Failed to fetch popular today");
+
+    return data?.item;
 }
diff --git a/front/src/lib/utils.js b/front/src/lib/utils.js
deleted file mode 100644
index 726a1f3..0000000
--- a/front/src/lib/utils.js
+++ /dev/null
@@ -1,6 +0,0 @@
-export function expandOnTyping(element) {
-    element.oninput = (event) => {
-        event.target.style.height = ""; // skipcq: JS-W1032
-        event.target.style.height = `${event.target.scrollHeight + 2}px`;
-    };
-}
diff --git a/front/src/lib/utils.ts b/front/src/lib/utils.ts
new file mode 100644
index 0000000..92ac3e8
--- /dev/null
+++ b/front/src/lib/utils.ts
@@ -0,0 +1,6 @@
+export function expandOnTyping(element: HTMLTextAreaElement) {
+    element.oninput = () => {
+        element.style.height = ""; // skipcq: JS-W1032
+        element.style.height = `${element.scrollHeight + 2}px`;
+    };
+}
diff --git a/front/jsconfig.json b/front/tsconfig.json
similarity index 86%
rename from front/jsconfig.json
rename to front/tsconfig.json
index 5696a2d..4953d2b 100644
--- a/front/jsconfig.json
+++ b/front/tsconfig.json
@@ -1,14 +1,15 @@
 {
   "compilerOptions": {
     "moduleResolution": "bundler",
-    "target": "ESNext",
-    "module": "ESNext",
+    "module": "ES2015",
+    "target": "ES2017",
+    "lib": ["ES2017", "DOM"],
     /**
      * 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.
      */
-    "verbatimModuleSyntax": true,
+    "verbatimModuleSyntax": false,
     "isolatedModules": true,
     "resolveJsonModule": true,
     /**
@@ -22,6 +23,7 @@
      * Typecheck JS in `.svelte` and `.js` files by default.
      * Disable this if you'd like to use dynamic types.
      */
+    "allowJs": true,
     "checkJs": true
   },
   /**