marquez.juan/clase-10-ejercicios-de-repaso
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feat: implement counter functionality with increment and decrement buttons

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Facundo Saucedo
2026-05-25 12:22:17 -03:00
parent 28718fea20
commit 4a7c4871f6
2 changed files with 35 additions and 1 deletions
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32
ejercicio4/ejercicio4.js
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@@ -1 +1,33 @@
// Agregar aquí el código javascript
const incrementButton = document.getElementById('increment');
const decrementButton = document.getElementById('decrement');
const counterDisplay = document.getElementById('counter');
let counter = 0;
incrementButton.addEventListener('click', () => {
if (counter >= 10) {
incrementButton.disabled = true;
alert('El contador ha alcanzado el valor máximo de 10.');
return;
}
counter++;
if (counter > 0) {
decrementButton.disabled = false;
}
counterDisplay.textContent = counter;
});
decrementButton.addEventListener('click', () => {
if (counter <= 0) {
decrementButton.disabled = true;
alert('El contador ha alcanzado el valor mínimo de 0.');
return;
}
counter--;
if (counter < 10) {
incrementButton.disabled = false;
}
counterDisplay.textContent = counter;
});

4
ejercicio4/index.html
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@@ -8,7 +8,9 @@
</head>
<body>
<h1>Ejercicio 4</h1>
<p> Contador: <span id="counter">0</span></p>
<button id="increment">Incrementar</button>
<button id="decrement">Decrementar</button>
<script src="ejercicio4.js"></script>
</body>
</html>