Enter Numbers

JavaScript Code

function computeSum() {
  const a = parseFloat(document.getElementById('num1').value) || 0;
  const b = parseFloat(document.getElementById('num2').value) || 0;
  const sum = a + b;
  document.getElementById('output').innerText = 'Result: ' + sum;
}

document.getElementById('computeBtn')
        .addEventListener('click', computeSum);
      

Output

Result will appear here