The first(), last(), eq(), filter() and not() Methods
The most basic filtering methods are first()
, last()
and eq()
, which
allow you to select a specific element based on its position in a group of
elements.
Other filtering methods, like filter()
and not()
allow you to select elements
that match, or do not match, a certain criteria.
The first()
method returns the first element of the specified elements.
The following example selects the first <div>
element:
$(document).ready(function(){
$("div").first();
});
The last()
method returns the last element of the specified elements.
The following example selects the last <div>
element:
$(document).ready(function(){
$("div").last();
});
The eq()
method returns an element with a specific index number of the
selected elements.
The index numbers start at 0, so the first element will have the index number
0 and not 1. The following example selects the second <p>
element (index number
1):
$(document).ready(function(){
$("p").eq(1);
});
The filter()
method lets you specify a criteria. Elements that do not match
the criteria are removed from the selection, and those that match will be
returned.
The following example returns all <p>
elements with class name "intro":
$(document).ready(function(){
$("p").filter(".intro");
});