How to limit quantity dropdown to 1

[tuanphan]

To limit quantity dropdown to 1.

#1. First, find Product ID

#2. Next, use this code to Code Injection > Footer

<script>
document.querySelectorAll('#item-67e3cd210fb9e460a936cfcf input.product-quantity-input').forEach(input => {
  input.value = 1;
  input.setAttribute('readonly', true);
  input.style.pointerEvents = 'none';
});
</script>

#3. Remember to update ID