限制数量 <li> 中的元素 <ol> 和 <ul>

Question

Is it possible to limit number of li elements in ol and ul directly through html?

If I want to do it with javascript or jquery, how would I do it?

Answer 1

You can do it with CSS 3, if you finally want to hide them.

li:nth-of-type(1n+15) {
    display: none;
} 

Answer 2

jQuery provides selectors that can simplify this process. For example, if you want to remove li elements at an index greater than 2:

$('#myList li:gt(2)').remove();

Or you can simply hide via css if you like:

#myList li:nth-of-type(1n+4) {
  display: none;
}

Here's an example jsfiddle .

Answer 3

您可以使用class和li元素隐藏类下的li（这不会隐藏页面上的所有li，而是隐藏指定类下的li）。

.class li:nth-of-type(1n+4) { display: none; };

Answer 4

Here's something I knocked up quickly. My solution is just to hide the elements whose index exceeds some defined maximum - but you can use remove() just as easily. Take a look:

 var max = 2; $('ul, ol').each(function(){ $(this).find('li').each(function(index){ if(index >= max) $(this).hide() }) }) 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <ul> <li>1</li> <li>2</li> <li>3</li> </ul> <ol> <li>1</li> <li>2</li> <li>3</li> </ol> 

To the best of my knowledge, there's no way to do this natively in HTML. But it's very easy to do so in JS or jQuery.

Hope this helps.