如何从div中删除元素？

Question

var aa = 0;
var arr = new Array("one", "two", "three");
var arr1 = new Array("four", "five", "six");

function cl(me) {
    me.clicked = !me.clicked;
    var id = me.id;
    if (me.clicked) {
        if (id == 1000) aa = arr;
        if (id == "one" || id == "two" || id == "three") aa = arr1;
        var s = document.getElementById("sample");
        var d = document.createElement("div");
        d.id = me.id + 1;
        s.appendChild(d);
        for (i = 0; i < aa.length; i++) {
            var l = document.createElement("label");
            l.innerHTML = aa[i];
            l.id = aa[i];
            l.onclick = function (){cl(this)};
            d.appendChild(l);
        }
    } else {
        var child = document.getElementById(me.id + 1);
        var parent = document.getElementById("sample");
        parent.removeChild(child);
    }
}

Markup:

<label id="1000" onclick="cl(this)">click</label><br><div id="sample"></div>

When the label "click" is clicked, three labels "one" "two" "three" are generated successfully.

When I click label "one" labels "four" "five" "six" are generated successfully.

When I again click label "one" "three four five" labels are removed.

But the problem is when I click label "click" and then label "one".. now when i click "one" again the label "one two three" is alone removed but not "four five six".

Answer 1

HTML label elements do not have a clicked attribute so it's not a good idea to give them a clicked property.

Labels are meant for form controls that don't have a label or caption, such as radio buttons and checkboxes. A more appropriate element here would be a button (either a button or input type button element).

Id attributes must start with a letter, they can't be all numbers.

Browsers will tolerate all of the above, however it's not a good idea to ignore specifications because a browser may be released that adheres to the specification in ways your code doesn't.

I think your issue is that the labels created by one look just like the ones created by four . If you remove four by clicking on one , you can't remove the labels it created until you create it again.

Use an element inspector to see what's happening.