javascript显示文本输入字段

Question

I am using the following coding in a website I am building but rather than the text input field showing if one option is selected, I need it show if the user selects other options as well?

for example oit currently shows the text input field if the user selects option 2 from the select menu but need to show as well if the user selects option 4 in the select menu, below is my jfiddle code so far

it currently shows the extra text input fields when Domestic+ is selected in the select menu but need the text input fields to show as well when Commercial is selected within the dropdown menu

I found something similar on stackoverflow, see link below

<http://stackoverflow.com/questions/21007591/using-jquery-to-hide-form-elements-based-on-selected-dropdown-option/33055467#33055467>

<http://jsfiddle.net/gxxkdz2m/2/>

Thank you in advance

Ian

Answer 1

Is this what you mean? I added comments explaining the code where I changed it.

$(document).ready(function () {
  $('#support select[name="support_plans"]').change(function () {
    // get selected plan value
    var plan = $('#support select[name="support_plans"] option:selected').val();
    // check whether 'Domestic+' or 'Commercial+' is selected
    if (plan == 'Domestic+' || plan =='Commercial+') {
          $('#extra').show();
      } else {
          $('#extra').hide();
      }
  });
});

Fiddle of my Version (updated your fiddle).

http://jsfiddle.net/gxxkdz2m/4/

Answer 2

use this javascript code:

$(document).ready(function () {
  $('#support select[name="support_plans"]').change(function () {
    if ($('#support select[name="support_plans"] option:selected').val() == 'Domestic+') {
        $('#extra').css('display', 'inline');
    } else {
        $('#extra').css('display', 'none');
    }
  });

});