formatted code

public/index.html

@@ -77,7 +77,7 @@
             <option value="3">Good-ability group</option>
             <option value="4">Average-ability group</option>
             <option value="5">Low-ability group</option>
-            
+
           </select>
           <div id="category-validation" class="error-message">Please select the category.</div>
         </div>

public/index.js

@@ -87,7 +87,7 @@ function isFormValid() {
         document.getElementById('schoolLevel-validation').style.display = 'none';
     }
 
-    if (inputObj.category === ''|| inputObj.category === 0) {
+    if (inputObj.category === '' || inputObj.category === 0) {
         invalidFields++;
         document.getElementById('category-validation').style.display = 'block';
     } else {