Drag and drop (replace) in HTML 5

问题

i have menu from where can drag elements and drop into another div, it works. But how i can do the replacement of elements??

function allowDrop(ev) {
    ev.preventDefault();
}

function drag(ev) {
    ev.dataTransfer.setData("text", ev.target.id);
}

function OnDragEnter (){
}
function drop(ev) { 
    ev.preventDefault();
    var data = ev.dataTransfer.getData("text");
    var nodeCopy = document.getElementById(data).cloneNode(true);
    nodeCopy.id = "newId";
    ev.target.appendChild(nodeCopy);
}

回答1:

Try this:

function allowDrop(ev) {
    ev.preventDefault();
}

function drag(ev) {
    ev.dataTransfer.setData("text", ev.target.id);
}

function drop(ev) {
    ev.preventDefault();
    var data = ev.dataTransfer.getData("text");
    ev.target.removeChild(ev.target.childNodes[0]);
    ev.target.appendChild(document.getElementById(data));
}

来源：https://stackoverflow.com/questions/27089260/drag-and-drop-replace-in-html-5