Change inner elements id during clone

问题

I'm doing a clone of a DIV element on button click, I'm able to change the value of ID of the DIV element I'm cloning. But is it possible to change the id of the inner element.

In the below code I'm changing the Id of #selection while cloning, I need to dynamically change the id #select.

<div id="selections">
  <div class="input-group" id="selection">
    <span class="input-group-addon">
    <i class="icon wb-menu" aria-hidden="true"></i>
     </span>
    <select class="show-tick" data-plugin="select2" id="select">
      <option>True</option>
      <option>False</option>
    </select>
  </div>
</div>
<button class="btn btn-primary" type="button" style="margin-left: 30px;">
  Add new selection
</button>

The JS below

$(function() {
  //on click
  $("body").on("click", ".btn-primary", function() {
    alert($(".input-group").length)
    var
    //get length of selections
      length = $(".input-group").length,
      //create new id
      newId = "selection-" + length++,
      //clone first element with new id
      clone = $("#selection").clone().attr("id", newId);
    //append clone on the end
    $("#selections").append(clone);
  });
});

回答1:

Yes.. its totally possible as follows:

var clone = $("#selection").clone();
clone.attr("id", newId);

clone.find("#select").attr("id","select-"+length);

//append clone on the end
$("#selections").append(clone);

回答2:

You need to change all children's ID manually.

Either change it for only one like that:

//clone first element with new id
clone = $("#selection").clone();
clone.attr("id", newId);
clone.find("#select").attr("id","whateverID");

Or change all children using something like that: jQuery changing the id attribute of all the children

回答3:

Use the class .show-tick and the .children() method to locate the element:

clone.children('.show-tick').attr('id', 'select-' + length);

$(function() {
  //on click
  $(".btn-primary").on("click", function() {
    alert($(".input-group").length)
    var
    //get length of selections
      length = $(".input-group").length,
      //create new id
      newId = "selection-" + length,
      //clone first element with new id
      clone = $("#selection").clone().attr("id", newId);
      clone.children('.show-tick').attr('id', 'select-' + length++);
    //append clone on the end
    $("#selections").append(clone);
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="selections">
  <div class="input-group" id="selection">
    <span class="input-group-addon">
    <i class="icon wb-menu" aria-hidden="true"></i>
     </span>
    <select class="show-tick" data-plugin="select2" id="select">
      <option>True</option>
      <option>False</option>
    </select>
  </div>
</div>
<button class="btn btn-primary" type="button" style="margin-left: 30px;">
  Add new selection
</button>

来源：https://stackoverflow.com/questions/33437891/change-inner-elements-id-during-clone

标签

javascript

jquery

twitter-bootstrap

clone