Question

I have:

<select>
  <option value=1>1</option>
  <option value=1>2</option>
  <option value=1>3</option>
  ...
  <option value=97>97</option>
  <option value=98>98</option>
  <option value=99>99</option>
</select>

How can i with jQuery cut with this all option from value 20 to 40?

Answer 1

var select = $('#mySelect');

for (var i = 20; i <= 40; i++)
{
    select.find('option[value="' + i + '"]').remove();
}

The simpliest way…

Another is filter(), here:

$('#mySelect option').filter(function() {
    return $(this).val() >= 20 && $(this).val() <= 40;
}).remove();