The example in this article describes the method of adding options to selected in js. Share it with everyone for your reference. The specific implementation method is as follows:
<select id="Mmonth"> <option>1</option> </select> <input type="button" onclick="a()" value="添加"/> <script> function a(){ document.getElementById("Mmonth").options.add(new Option(1,1)); } </script>
I hope this article will be helpful to everyone’s JavaScript programming design.