Erase options within optgroup

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Erase options within optgroup

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#1 by (2 votes)

2

I have select with two optgroup . I want in JS to delete all% with% that are only in options .

<select id = "testSelect" name="testSelect">
   <optgroup label="opt1">
      <option value="3">Apples</option>
      <option value="1">Oranges</option>
      <option value="2">Pears</option>
   </optgroup>
   <optgroup label="opt2">
      <option value="4">ford</option>
      <option value="6">toyota</option>
      <option value="5">ferrari</option>
   </optgroup>
</select>

In this example I want to delete the optgroup from options 2. Something like this:

$$("input[type=select][id=^testSelect][label="opt2"]").each(function(curr){
//get outgroup
//remove all options;
}

javascript

asked by anonymous 25.11.2016 / 12:22

1 answer

Button with glyphicon-remove with size problem Return array () in jQuery

score 2 · Answer 1

You can do this to delete everything (including optgroup )

document.querySelector('optgroup[label="opt2"]').remove();

<select name="testSelect">
   <optgroup label="opt1">
      <option value="3">Apples</option>
      <option value="1">Oranges</option>
      <option value="2">Pears</option>
   </optgroup>
   <optgroup label="opt2">
      <option value="4">ford</option>
      <option value="6">toyota</option>
      <option value="5">ferrari</option>
   </optgroup>
</select>

Or use this to delete only options

document.querySelectorAll('optgroup[label="opt2"] option').forEach(function(el) {
    el.remove();
});