Answers for "how to get checked checkbox value from checkbox in html"

how to take value only from the checked checkbox

document.getElementById('select').onclick = function() {
  var checkboxes = document.querySelectorAll('input[type="checkbox"]:checked');
  for (var checkbox of checkboxes) {
    document.body.append(checkbox.value + ' ');
  }
}

checkbox value

<input type="checkbox" name="vehicle1" value="Bike">

The checkbox value is 'Bike'.