如何从div中删除最后一个元素？

Question

I have list of descriptions and after remove one of them, I'd like to remove last element from div, not refreshing site. I don't know javascript in fact, so I'd like to ask how should my destroy.js.erb looks like? I can refresh whole class "descriptions" using

$('.descriptions').load(location.href + " .descriptions");

but I'm interested, if there is way to remove only last element.

  <div class="descriptions">
       <%= render @descriptions %> 
  </div>

 //_description.html.erb
 <div class="description-field">
        <%= @description.text %>
 </div>

Thank you for any help

Answer 1

<div class="parent">
    <div class="child">
        Item 1
    </div>
    <div class="child">
        Item 2
    </div>
    <div class="child">
        Item 3
    </div>
</div>

The following line of jQuery would delete "Item 3."

$('.parent').children().last().remove();

Answer 2

Use css selector :last-child to remove it (found here ). Then use jQuery to remove last element.

$(".yourdiv :last-child").remove();

Here is jsFiddle example:

html:

<div>
    <p> Hello </p>
    <p> World </p>
    <p> last element </p>
</div>

JavaScript:

$("div :last-child").remove();

Answer 3

Use this if you want to remove the last div:

$("div:last").remove(); 

Use this if you want to remove the last sibling of some div with id "#mydiv"

$('#mydiv:last-child')

Answer 4

<div id="parent">
    <div id="child">
        Item 1
    </div>
    <div id="child">
        Item 2
    </div>
    <div id="child">
        Item 3
    </div>
</div>

The following is a JQuery code that removes the last child item 3

$("#child").remove();

or you can also use

$("#child").css({"display": "none"});