feat: add character count functionality to text input

clase-9.js

@@ -11,3 +11,12 @@ clickButton.addEventListener('click', () => {
     count++;
     clickCounter.textContent = count;
 });
+
+// Ejercicio 2
+
+const textInput = document.getElementById('textInput');
+const charCount = document.getElementById('charCount');
+
+textInput.addEventListener('input', () => {
+    charCount.textContent = textInput.value.length;
+});