Projeto finalizado.

app.js

@@ -1,10 +1,16 @@
 document.addEventListener("DOMContentLoaded", function() {
+    const list = [];
+    
+    const form = document.querySelector(".shopping-form");
+    const itemInput = document.querySelector(".shopping-form-item-input");
     const quantityInput = document.querySelector(".shopping-form-quantity-input");
     const incrementButton = document.querySelector(".shopping-form-increment-button");
     const decrementButton = document.querySelector(".shopping-form-decrement-button");
+    const items = document.querySelector(".shopping-items");
 
     incrementButton.addEventListener("click", incrementQuantity);
     decrementButton.addEventListener("click", decrementQuantity);
+    form.addEventListener("submit", addItemToList);
 
     function incrementQuantity() {
         const currentValue = Number(quantityInput.value);
@@ -22,4 +28,43 @@ document.addEventListener("DOMContentLoaded", function() {
         }
         
     }
+
+    function addItemToList(event) {
+        event.preventDefault();
+
+        const itemName = event.target["item-name"].value;
+        const itemQuantity = event.target["item-quantity"].value;
+
+        if(itemName != "") {
+            const item = {
+                name: itemName,
+                quantity: itemQuantity, 
+            };
+    
+            list.push(item);
+            
+            renderListItems();
+            resetInputs();
+        }
+    }
+    
+    function renderListItems() {
+        let itemsStructure = "";
+    
+        list.forEach(function (item) {
+            itemsStructure += `
+                <li class="shopping-item">
+                    <span>${item.name}</span>
+                    <span>${item.quantity}</span>
+                </li>
+            `;
+        });
+
+        items.innerHTML = itemsStructure;
+    }
+
+    function resetInputs() {
+        itemInput.value = "";
+        quantityInput.value = 1;
+    }
 });

index.html

@@ -36,6 +36,15 @@
 
                     <button class="shopping-form-submit-button" type="submit">Add to list</button>
                 </form>
+
+                <div class="shopping-result">
+                    <div class="shopping-result-head">
+                        <strong>Item</strong>
+                        <strong>Quantity</strong>
+                    </div>
+
+                    <ul class="shopping-items"></ul>
+                </div>
             </section>
         </main>
 

styles/form.css

@@ -1,3 +1,6 @@
+.shopping-form {
+    margin-bottom: 32px;
+}
 .shopping-form-inputs {
     display: flex;
     align-items: flex-end;

styles/items.css

@@ -0,0 +1,22 @@
+.shopping-result {
+    max-width: 416px;
+}
+
+.shopping-result-head,
+.shopping-item {
+    display: grid;
+    grid-template-columns: 3fr 1fr;
+    padding: 8px 16px;
+}
+
+.shopping-result-head {
+    background: var(--gray-100);
+}
+
+.shopping-item {
+    list-style: none;
+}
+
+.shopping-item:nth-child(even) {
+    background: var(--gray-100);
+}

styles/main.css

@@ -1,6 +1,7 @@
 @import "global.css";
 @import "variables.css";
 @import "form.css";
+@import "items.css";
 
 .shopping-container {
     max-width: 1200px;