how do I add an option to a html form dropdown list with javascript

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醉话见心
醉话见心 2020-12-10 21:01

I want this script to add an option to the list.

When you open the list I want the options to be test and hello

What am I doing wro

3条回答
  •  南方客
    南方客 (楼主)
    2020-12-10 21:37

    You need to actually add the option object to the dom. I have linked to a fiddle with your example working: http://jsfiddle.net/DS8TG/

    Change runList to the following:

    function runList(){
      var select = document.getElementById('list');
      select.options[select.options.length] = new Option('Hello', 'Hello');
    }​
    

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