如何用javascript复制div onclick？

Question

我希望在单击按钮时复制div.我虽然这样; 但它不起作用.谁能帮我？

HTML

<div id="duplicater"> 
duplicate EVERYTHING INSIDE THIS DIV
</div>

JAVASCRIPT

function duplicate()
{
var div = duplicate("div");
    div.id = "duplicater";
div.appendChild(duplicate("duplicater"));
}

Answer 1

您正在创建无限递归!

function duplicate()
{
    var div = duplicate("div");

该功能一次又一次地调用自己.用途cloneNode():

HTML:

<div id="duplicater0"> 
duplicate EVERYTHING INSIDE THIS DIV
</div>

JavaScript的:

var i = 0;

function duplicate() {
    var original = document.getElementById('duplicater' + i);
    var clone = original.cloneNode(true); // "deep" clone
   clone.id = "duplicater" + ++i; // there can only be one element with an ID
    clone.onclick = duplicate; // event handlers are not cloned
    original.parentNode.appendChild(clone);
}

工作演示

或者没有ID:

function duplicate() {
    var clone = this.cloneNode(true); // "deep" clone
    clone.id = ""; // there can only be one element with an ID
    clone.onclick = duplicate; // event handlers are not cloned
    this.parentNode.appendChild(clone);
}

更新:

如果要克隆div按钮单击,可以使用略有不同的版本:

HTML:

<button id="button" onclick="duplicate()">Click me</button>
<div id="duplicater"> 
    duplicate EVERYTHING INSIDE THIS DIV
</div>

JavaScript的:

var i = 0;
var original = document.getElementById('duplicater');

function duplicate() {
    var clone = original.cloneNode(true); // "deep" clone
    clone.id = "duplicater" + ++i;
    // or clone.id = ""; if the divs don't need an ID
    original.parentNode.appendChild(clone);
}

如果你不在表格中,你应该使用<button>而不是<input type="button">.

工作演示2