我有这个HTML:
<div class="info">
<div class="form-group">
<label class="control-label col-sm-2">Title</label>
<div class="col-xs-10 col-sm-8">
<input id="titleInfo" class="form-control" type="text" placeholder="Title">
</div>
<div class="col-xs-1 col-sm-1">
<button class="btn btn-default remove_field"><i class="fa fa-remove"></i></button>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2">Text</label>
<div class="col-xs-10 col-sm-8">
<textarea id="textInfo" class="form-control" type="text" placeholder="..."></textarea>
</div>
</div>
</div>
在我的jsp中,我有很多这样的东西:
<div class="info">
...
</div>
<div class="info">
...
</div>
<div class="info">
...
</div>
现在,我将以类信息的升序更改id标签:每个div的titleInfo和textInfo。
<div class="info">
..<input id="titleInfo1"..
..<textarea id="textInfo1"..
</div>
<div class="info">
..<input id="titleInfo2"..
..<textarea id="textInfo2"..
</div>
<div class="info">
..<input id="titleInfo3"..
..<textarea id="textInfo3"..
</div>
等等。
我想按类(class)信息进行迭代:
var x = 1;
$(".info").each(function() {
//Now, I don't know how to change the ids
x++;
});
最佳答案
您需要将代码更新为以下内容
var x = 1;
$(".info").each(function() {
var elems = $(this).find(".form-control"); // get all the input elements with class form-control
elems.each(function() { // iterate over the elements
$(this).attr("id", $(this).attr("id") + x); // update id
});
x++;
});
更新
var x = 1;
$(".info").each(function() {
var elems = $(this).find(".form-control"); // get all the input elements with class form-control
$(elems[0]).attr("id", "titleInfo" + x);
$(elems[1]).attr("id", "textInfo" + x);
x++;
});
关于javascript - 如何更改按类迭代的id值,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/31345350/