Javascript 将数据属性的值追加到dom

我想用jquery提取date res和data ref的值，并将其附加到它的div中

<div id="grid">
<div class="item blue" date-res="8" date-ref="13" data-groups='["all", "letters", "blue", "square"]'>D</div>
<div class="item green" date-res="9" date-ref="10" data-groups='["all", "letters", "blue", "square"]'>E</div>
<div class="item green" date-res="2" date-ref="7" data-groups='["all", "letters", "blue", "square"]'>F</div>
</div>

D
E
F

使用

.data（）

可以在uts属性中获取值

您需要将html从

date res

更改为

data res

：

 <div id="grid">
    <div class="item blue" data-res="8" data-ref="13" data-groups='["all", "letters", "blue", "square"]'>D</div>
    <div class="item green" data-res="9" data-ref="10" data-groups='["all", "letters", "blue", "square"]'>E</div>
    <div class="item green" data-res="2" data-ref="7" data-groups='["all", "letters", "blue", "square"]'>F</div>
    </div>

---

如果无法更改html，请尝试以下操作：

$('.item').each(function(index){
    var res = $(this).attr('date-res');
    var ref = $(this).attr('date-ref');
    $(this).append(res).append(ref);
});

试着用

html包含错误的属性名称，而不是

数据-

，因此请使用

<div id="grid">
    <div class="item blue" data-res="8" data-ref="13" data-groups='["all", "letters", "blue", "square"]'>D</div>
    <div class="item green" data-res="9" data-ref="10" data-groups='["all", "letters", "blue", "square"]'>E</div>
    <div class="item green" data-res="2" data-ref="7" data-groups='["all", "letters", "blue", "square"]'>F</div>
</div>

D
E
F

---

演示：

试试这个：我希望这个对你非常有效

$("#grid").find('.item').each(function(index,element){

    var res=$(this).attr("date-res");
     var ref=$(this).attr("date-ref");
        $(this).html("res value="+res+"  ref value="+ref);


    })

如果var res=$（此）.data（'res'）；您将无法获得html date-res中提到的任何内容。请将html更改为“data res”，然后您将获得res值。同样适用于“数据参考”属性

<div id="grid">
    <div class="item blue" data-res="8" data-ref="13" data-groups='["all", "letters", "blue", "square"]'>D</div>
    <div class="item green" data-res="9" data-ref="10" data-groups='["all", "letters", "blue", "square"]'>E</div>
    <div class="item green" data-res="2" data-ref="7" data-groups='["all", "letters", "blue", "square"]'>F</div>
</div>

$('.item').each(function(index){
    var res = $(this).attr('date-res');
    var ref = $(this).attr('date-ref');
    $(this).append(res).append(ref);
});

$("#grid").find('.item').each(function(index,element){

    var res=$(this).attr("date-res");
     var ref=$(this).attr("date-ref");
        $(this).html("res value="+res+"  ref value="+ref);


    })