Opposite of not() function

Question

I have a simple question, I've the following lines which equals to not active links :

$links.not($active).each(function() 
{
     //Do sth...
});

what is the opposite of the .not(...) function in JavaScript? because I need to know the active links, Any ideas !?

Answer 1

This is jQuery, not JavaScript. The opposite of .not is .filter .

Answer 2

您正在寻找.filter() ，它返回仅包含匹配元素的子集。

Answer 3

Using $links.not($active) creates a collection with the elements from $links except the elements in $active .

To get the active links, just use the $active object:

$active.each(function() 
{
  //Do sth...
});

Answer 4

The opposite of not in programming is often named is

http://api.jquery.com/is/

However this will return boolean true of false so in your case you'll be wanting filter

http://api.jquery.com/filter/

Example:

$links.filter('.onlyThisClass').each(function() 
{
     //Do sth...
});