add Option

by Prasad Gavande

HTML

<select id="s1">
  <option value="red" style="color:red">red</option>
  <option value="blue" style="color:blue">blue</option>
  <option value="green">Green</option>
</select>
<input type="text" id="value">
<button id="b1">
  Add
</button>

JavaScript

$("document").ready(function() {
  $("#b1").click(function() {
    var a = $("#value").val();
    $("#s1").append($('<option>', {
      value: a,
      text: a
    }));
  });
})