I have html string (js string) as below
<ol class="testClass">
<li>test1</li>
<li>testing2</li>
<li>testing3</li>
<li>testing4</li>
<li>testing5</li>
<li>testing6</li>
</ol>
I need just 2 to 3 list items, and discard the rest (as below)
<ol class="testClass">
<li>test1</li>
<li>testing2</li>
<li>testing3</li>
</ol>
Any idea how to do this? can I use jQuery to return subset of ol? or is there a regex for this?
Edit:
Thanks a lot for your answers. I have a sub question (sorry I should have asked this with original question)
I want to limit just the li corresponding to test class (and not consider the li under testClass2 for removal).
<ol class="testClass">
<li>test1</li>
<li>testing2</li>
<li>testing3</li>
<ul class="testClass2">
<li>testing4</li>
<li>testing5</li>
</ul>
<li>testing6</li>
</ol>
I tried something like
html.not('.testClass2').find("li:gt(3)").remove();
but its still considering the inner elements
This seems to work:
html.find("ol>li:gt(4)").remove();
You can simply convert them to DOM elements, and use normal selectors.
It sounds like you want to append only the first 3 li
elements, so just grab the children of the ul
, and slice the first 3 before appending to the page.
$(my_string).children("li").slice(0, 3).appendTo("#target");
Another jQuery way:
<div id="demo"></div>
var html = $('<ol class="testClass"><li>test1</li><li>testing2</li><li>testing3</li><li>testing4</li><li>testing5</li><li>testing6</li></ol>');
html.find("li:gt(2)").remove();
$("#demo").append(html);
If you really have a string and want to use jQuery, then you can parse it, then find all elements with indices higher than 2 and remove them:
var $html = $('<ol class="testClass"><li>test1</li><li>testing2</li><li>testing3</li><li>testing4</li><li>testing5</li><li>testing6</li></ol>');
$html.find('li:gt(2)').remove();
$('<div>').append($html.clone()).html(); // This returns the new HTML code.
$('#wrapper').append($html); // This would append it to a #wrapper element.
var str = '<ol class="testClass"><li>test1</li><li>testing2</li><li>testing3</li><li>testing4</li><li>testing5</li><li>testing6</li></ol>', // Maximum number of <li>s you want to keep max = 2, temp = document.createElement('div'), res = ''; // Put the string in a temporary DOM temp.innerHTML = str; // Find <li>s var lis = temp.getElementsByTagName('li'); for(var i = 0, l=lis.length; i<l && i<max; i++){ // Append them to a string res += lis[i].outerHTML; } // Empty the list and insert the ones you kept temp.childNodes[0].innerHTML = res; document.body.innerHTML = temp.innerHTML;
Here is a fiddle that demonstrates Lye Fish's answer:
https://jsfiddle.net/BenjaminRay/qbj50dms/
HTML:
<ol id="target">
</ol>
Javascript (with jQuery):
var str = "<ol class=\"testClass\">" +
"<li>test1</li>" +
"<li>testing2</li>" +
"<li>testing3</li>" +
"<li>testing4</li>" +
"<li>testing5</li>" +
"<li>testing6</li>" +
"</ol>";
$(str).children("li").slice(0, 3).appendTo("#target");
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