Question

How can I set the value of a select input field to the value of the first option that is not disabled

for eg., in this field, the selected value is 1. How can I change this value to the next non-disabled option, ie. 2 ?

<select>
  <option disabled="disabled" value="1">1</option
  <option value="2">2</option
  <option disabled="disabled" value="3">3</option
  <option value="4">4</option
</select>

Answer 1

for your given example, I would use:

$("select option:not([disabled])").first().attr("selected", "selected");

if your select had a specific ID (“#foo” for example):

$("#foo option:not([disabled])").first().attr("selected", "selected");