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jQuery Traversing - Filtering


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.

jQuery first() Method
The first() method returns the first element of the specified elements.
The following example selects the first <div>
element:

Example

$(document).ready(function(){  $("div").first();});
Try it Yourself »


jQuery last() Method
The last() method returns the last element of the specified elements.
The following example selects the last <div>
element:

Example

$(document).ready(function(){  $("div").last();});
Try it Yourself »








jQuery eq() method
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):

Example

$(document).ready(function(){  $("p").eq(1);});
Try it Yourself »


jQuery filter() Method
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":

Example

$(document).ready(function(){  $("p").filter(".intro");});
Try it Yourself »


jQuery not() Method
The not() method returns all elements that do not match the criteria.
Tip: The not() method is the opposite of filter().
The following example returns all <p> elements that do not have class name
"intro":

Example

$(document).ready(function(){  $("p").not(".intro");});
Try it Yourself »


jQuery Exercises

Test Yourself With Exercises

Exercise:
Use a jQuery method to get the first <div> element in the document.


$("div").();



Submit Answer »
Start the Exercise



jQuery Traversing Reference
For a complete overview of all jQuery Traversing methods, please go to our
jQuery Traversing Reference.












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Reference: https://www.w3schools.com/jquery/jquery ... tering.asp