jQuery将复选框选择转换为数组

问题描述：

我有这样的 HTML :

<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</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>

每个复选框都有唯一的名称= pgggo-category-sep-56，pgggo-category-sep-14.单击多个项目后，会将ID添加到下面的数组的ID字段中.

Each checkbox has unique name = pgggo-category-sep-56, pgggo-category-sep-14. As multiple items are clicked the ids are added to the id field of below array.

我正在尝试一种方法，可以给我一个输出数组:

I am trying to have a method which gives me an array as output:

$output = array(
   array(
     'taxonomy'=> 'category', // pgggo-category-sep-56 --category word is pulled from here
     'id'=> array(56,14), // ids are pulled pgggo-category-sep-56 number at the end
    )
   array(
     'taxonomy'=> 'home', // pgggo-home-sep-56 --homeword is pulled from here
     'id'=> array(56,14), // ids are pulled pgggo-category-sep-56 number at the end
    )
);

我尝试过:

$('.pgggo-container-ajax-sorting').on('click', '.pgggo-list-taxon input', function(event) {
   var outputPgggo = $(this).attr('name');
}

但这只会拉出字符串.有什么办法可以做到这一点?

But this only pulls the string. Is there any way to get this done?

答

我建议将ID存储在对象中，而不要使用数组数组.使用起来更容易.像这样:

I would recommend storing the ids in an object instead of having an array of array. It's easier to work with. Something like this:

const array = {
  category: [],
  home: [],
};

然后，您始终可以通过一些数组操作将其转换为所需的形式:

Then, you can always transform into the desired form with some array manipulation:

Object.entries(array).map(([taxomony, id]) => ({taxomony, id}))

以下是单击复选框时更新对象的代码:

Here is the code to update the object when a checkbox is clicked:

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>

或者，不必麻烦处理重复项和状态.您只能在需要使用时构造数组:

Or, instead of having to go through the trouble of handling duplicates and states. You can construct the array only when you need to use it:

$('.sort-button').on('click', function() {

  const array = {};
  $('[name^="pgggo-"]').filter(':checked').each(function() {
    const [_, taxonomy, __, attr] = $(this).attr('name').split('-');
    array[taxonomy] = array[taxonomy] || [];
    array[taxonomy].push(attr.split('[')[0]);
  });
  
  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>

<button class="sort-button">Show!</button> <!-- for demo purposes -->

jQuery将复选框选择转换为数组

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