浅谈原生JavaScript实现remove()和recover()

利用原生JavaScript实现：

1、remove(selectors)删除指定的一个或一组元素。

2、recover(selectors)恢复刚才删除的元素。

function remove(selectors) {  
    selectors.removeNode = [];  
    if (selectors.length != undefined) {  
        var len = selectors.length;  
        for (var i = 0; i < len; i++) {  
            selectors.removeNode.push({  
                parent: selectors[i].parentNode,  
                inner: selectors[i].outerHTML,  
                next: selectors[i].nextSibling  
            });  
        }  
        for (var i = 0; i < len; i++)  
            selectors[0].parentNode.removeChild(selectors[0]);  
    }  
    else {  
        selectors.removeNode.push({  
            parent: selectors.parentNode,  
            inner: selectors.outerHTML,  
            next: selectors.nextSibling  
        });  
        selectors.parentNode.removeChild(selectors);  
    }     
}  
function recover(selectors) {  
    var len = selectors.removeNode.length;  
    for (var i = 0; i < len; i++) {  
        var node = selectors.removeNode[i];  
        if (node.next == null)  
            node.parent.innerHTML += node.inner;  
        else {  
            var div = document.createElement("div");  
            div.innerHTML = node.inner;  
            node.parent.insertBefore(div.childNodes[0], node.next);  
        }  
    }  
}