jQuery convert checkbox selections to array ( when unchecked make it empty)

Question

There is a solution here but I have a problem . when check box is checked and unchecked i wanted it to be empty but it results in

{ "category": [] }

but I wanted it to empty {}

const array = {};

$('[name^="pgggo-"]').on('click', function() {
  const [_, taxonomy, __, attr] = $(this).attr('name').split('-');
  const id = attr.split('[')[0];
  const checked = $(this).prop('checked');
  
  array[taxonomy] = array[taxonomy] || [];
  const index = array[taxonomy].indexOf(id);
  index == -1 ? array[taxonomy].push(id) : array[taxonomy].splice(index, 1);
  
  console.log(array);
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="pgggo-list-taxon">
  <li>
    <label>
            <input type="checkbox" name="pgggo-category-sep-56[]">
            <div class="icon-box">
                <div name="development">Development</div>
            </div>
        </label>
  </li>
  <li>
    <label>
            <input type="checkbox" name="pgggo-category-sep-14[]">
            <div class="icon-box">
                <div name="food">Food (category)</div>
            </div>
        </label>
  </li>
  <li>
    <label>
            <input type="checkbox" name="pgggo-home-sep-14[]">
            <div class="icon-box">
                <div name="food">Food (home)</div>
            </div>
        </label>
  </li>
  <li>
    <label>
            <input type="checkbox" name="pgggo-category-sep-8[]">
            <div class="icon-box">
                <div name="medical">Medical</div>
            </div>
        </label>
  </li>
  <li>
    <label>
            <input type="checkbox" name="pgggo-category-sep-1[]">
            <div class="icon-box">
                <div name="uncategorized">Uncategorized</div>
            </div>
        </label>
  </li>
  <li>
    <label>
            <input type="checkbox" name="pgggo-category-sep-2[]">
            <div class="icon-box">
                <div name="wordpress">WordPress</div>
            </div>
        </label>
  </li>
</div>

Please help

seemed I can see the console is printing empty as well. what is the issue? jsfiddle.net/hp7of9sk/1 — Daniel Smith
– Daniel Smith, Commented Feb 3, 2020 at 5:07

Muhammad Usman · Accepted Answer · 2020-02-03 05:08:58Z

well there should be nothing wrong with that. But still if you want to remove the related property, you can use delete object.property to delete it when all the items have been unchecked as following

const array = {};

$('[name^="pgggo-"]').on('click', function() {
  const [_, taxonomy, __, attr] = $(this).attr('name').split('-');
  const id = attr.split('[')[0];
  const checked = $(this).prop('checked');
  
  array[taxonomy] = array[taxonomy] || [];
  const index = array[taxonomy].indexOf(id);
  index == -1 ? array[taxonomy].push(id) : array[taxonomy].splice(index, 1);
   
  
  if(array[taxonomy].length == 0){
   delete array[taxonomy];
  }
  console.log(array)
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="pgggo-list-taxon">
    <li>
        <label>
            <input type="checkbox" name="pgggo-category-sep-56[]">
            <div class="icon-box">
                <div name="development">Development</div>
            </div>
        </label>
    </li>
    <li>
        <label>
            <input type="checkbox" name="pgggo-category-sep-14[]">
            <div class="icon-box">
                <div name="food">Food (category)</div>
            </div>
        </label>
    </li>
    <li>
        <label>
            <input type="checkbox" name="pgggo-home-sep-14[]">
            <div class="icon-box">
                <div name="food">Food (home)</div>
            </div>
        </label>
    </li>
    <li>
        <label>
            <input type="checkbox" name="pgggo-category-sep-8[]">
            <div class="icon-box">
                <div name="medical">Medical</div>
            </div>
        </label>
    </li>
    <li>
        <label>
            <input type="checkbox" name="pgggo-category-sep-1[]">
            <div class="icon-box">
                <div name="uncategorized">Uncategorized</div>
            </div>
        </label>
    </li>
    <li>
        <label>
            <input type="checkbox" name="pgggo-category-sep-2[]">
            <div class="icon-box">
                <div name="wordpress">WordPress</div>
            </div>
        </label>
    </li>
</div>

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