According to the code below:
var ul = document.getElementsByTagName('ul');
var ref = ul.item(0).children;
var saida = '';
for (i = 0; i <= ref.length; i++) {
if (i == 0) {
var HTMLString = "<div style='background-color: blue; width: 60px; height: 60px;'>";
var div = document.createElement('div');
div.innerHTML = HTMLString;
ref[i].parentElement.insertBefore(div.firstChild, ref[i]);
}
if (i == 11) {
var HTMLString = "</div><div style='background-color: red; width: 60px; height: 60px;'>";
var div = document.createElement('div');
div.innerHTML = HTMLString;
ref[i].parentElement.insertBefore(div.firstChild, ref[i]);
}
}<!DOCTYPE html>
<html>
<body>
<div id="div1">
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
<li>7</li>
<li>8</li>
<li>9</li>
<li>10</li>
<li>11</li>
<li>12</li>
<li>13</li>
<li>14</li>
<li>15</li>
<li>16</li>
<li>17</li>
<li>18</li>
<li>19</li>
<li>20</li>
<li>21</li>
<li>22</li>
<li>23</li>
<li>24</li>
<li>25</li>
</ul>
</div>
</body>
</html> It would be possible to open <div> before the first element <li> and close it after the 10th element <li> ??
If yes, how?
Note: According to the <script> that I created it creates the element <div> and closes in the same place ...
I used the concept of answer of this question .