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如何遍历子元素并创建嵌套的对象数组?

[英]How to loop through child elements and create nested array of objects?

我在<ul> / <li>列表中嵌套了复选框,它可以作为带有.check-negozio类的父复选框。 在该父级中,可能有一些带有.check-cassa类的复选框,而那些可能包含其他带有.check-operatore签名的子级复选框

所以 html 结构如下,可能有各种<li>.check-negozio作为父

现在我需要构建一个如下所示的对象

[{ negozio: npv, cassa: [{ cassa: cs, operatore: [] }] }] 

所以从下面的例子来看,对象必须是这样的

[{ negozio: 0, cassa: [{ cassa: 1, operatore: [] }, { cassa: 5, operatore: [0]}] }] 

为了实现这一点,我必须遍历每个.check-negozio然后在同一个循环中我必须遍历那个.check-negozio children .check-cassa并且如果.check-cassa有孩子.check-operator循环通过它们。

我试图执行以下操作,但$(this).children(".check-cassa").each似乎是错误的方法,因为它甚至没有进入该循环......我应该如何遍历嵌套元素像这样?

 $(".check-negozio").each(function() { if (this.checked || this.indeterminate) { // if parent checkbox is checked add it to object const npv = $(this).attr('data-npv'); selezione.negozio = npv; $(this).children(".check-cassa").each(function() { // here i should loop throw children .check-cassa of .check-negozio if (this.checked || this.indeterminate) { // if check-cassa is checked go ahead const cs = $(this).attr('data-cs'); if ($(this).closest('li').has('ul').length) { // here i check if check-cassa contain any child (in this case check-operatore) $(this).children(".check-operatore").each(function() { // if there are child check-operatore loop throw them if (this.checked) { // if checked add data-op inside array of operatore const op = $(this).attr('data-op'); operatore.push({ OP: op }); } }) selezione.cassa.push({ CS: cs, OP: operatore }) // here i add data-cs and array operatore inside object } else { // else if there isn't any child check-operatore just add data-cs with empty array of operatore selezione.cassa.push({ CS: cs, OP: [] }); } } }) config.push(selezione); // adding created object inside array } })
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <ul> <li> <input type="checkbox" class="check-negozio" data-npv="0"> <ul> <li class="nav-item"> <input type="checkbox" class="check-cassa" data-cs="1"> </li> <li> <input type="checkbox" class="check-cassa" data-cs="5"> <ul> <li> <input type="checkbox" class="check-operatore" data-op="0"> </li> </ul> </li> </ul> </li> </ul>

实际上,错误的方法正如@vqf 在评论中.check-cassa ,当我必须首先获得.check-negozio的父.check-negozio ,然后循环抛出它的子级.check-cassa时,通过使用.check-negozio作为父级来循环 throw .check-cassa我使用了相同的方法,我试图循环 throw .check-operatore首先我得到.check-cassa.check-cassa ,然后循环抛出它的子级.check-operatore然后我做了一些调整,通过初始化对象来获得正确的对象数组以及父循环内的check-cassecheck-operatori数组

这是工作代码

var config = [];


$(".check-negozio").each(function () {
    var selezione = {};
    var cassa = [];
    var operatore = [];
    if (this.checked || this.indeterminate) { // if parent checkbox is checked add it to object

        const npv = $(this).attr('data-npv');
        selezione.NPV = npv;

        $(".check-cassa", $(this).parent()).each(function () { // here i should loop throw children .check-cassa of .check-negozio
            if (this.checked || this.indeterminate) { // if check-cassa is checked go ahead
                const cs = $(this).attr('data-cs');

                if ($(this).closest('li').has('ul').length) { // here i check if check-cassa contain any child (in this case check-operatore)

                    $(".check-operatore", $(this).parent()).each(function () { // if there are child check-operatore loop throw them
                        if (this.checked) { // if checked add data-op inside array of operatore
                            const op = $(this).attr('data-op');
                            operatore.push({ OP: op });
                        }
                    })
                    cassa.push({ CS: cs, OP: operatore }) // here i add data-cs and array operatore inside object
                } else { // else if there isn't any child check-operatore just add data-cs with empty array of operatore
                    cassa.push({ CS: cs, OP: [] });
                }
                selezione.cassa = cassa;
            }
        })
        config.push(selezione); // adding created object inside array
    }
})

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