jQuery filter first, last, specific, and etc elements; In this tutorial, you will learn how to use jQuery filter methods for select elements on HTML.
To filter based on element in jquery
jQuery offers several filter methods such as first(), filter(), last(), eq(), slice(), has(), not(), etc. You can use to reduce the search or filter of elements in a DOM tree. Here we will demostrate all jQuery filter methods with examples:
- jQuery first() Method
- jQuery last() Method
- jQuery eq() Method
- jQuery filter() Method
- jQuery not() Method
- jQuery slice() Method
jQuery first() Method
Using the jQuery first() method can filter/get the first element of the HTML elements.
Syntax first() Method
$("selector").first();
jQuery first() method By Example
This example will demonstrate to you how to get/filter the first html elements using first () method.
<!DOCTYPE html>
<html>
<head>
<title>jQuery First Method Example</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<style type="text/css">
.first{
padding: 15px;
border: 12px solid #23384E;
background: #28BAA2;
margin-top: 10px;
}
</style>
<script>
$(document).ready(function(){
$(".first").first().css("background-color", "green");
});
</script>
</head>
<body>
<h1>This is first() method example</h1>
<div class="first">
<p>A paragraph in a div.</p>
<p>Another paragraph in a div.</p>
</div>
<br>
<div class="first">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
<br>
<div class="first">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
</body>
</html>
Output
This is first() method example
A paragraph in a div.
Another paragraph in a div.
A paragraph in another div.
Another paragraph in another div.
A paragraph in another div.
Another paragraph in another div.
jQuery last() Method
Using the jQuery last() method can filter/get the last element of the HTML elements.
Syntax last() Method
$("selector").last();
jQuery last() method By Example
This example will demonstrate to you how to get/filter the last HTML elements using last () method.
<!DOCTYPE html>
<html>
<head>
<title>jQuery Last Method Example</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<style type="text/css">
.last{
padding: 15px;
border: 12px solid #23384E;
background: #28BAA2;
margin-top: 10px;
}
</style>
<script>
$(document).ready(function(){
$(".last").last().css("background-color", "green");
});
</script>
</head>
<body>
<h1>This is last() method example</h1>
<div class="last">
<p>A paragraph in a div.</p>
<p>Another paragraph in a div.</p>
</div>
<br>
<div class="last">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
<br>
<div class="last">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
</body>
</html>
Output
This is last() method example
A paragraph in a div.
Another paragraph in a div.
A paragraph in another div.
Another paragraph in another div.
A paragraph in another div.
Another paragraph in another div.
jQuery eq() Method
Using the jQuery eq () method search/filter the elements directly and returns an element with a specific index.
Syntax eq() Method
$("selector").eq();
jQuery eq() method By Example
This example will demostrate you how to get/filter selected html elements using eq () method.
<!DOCTYPE html>
<html>
<head>
<title>jQuery eq() Method Example</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<style type="text/css">
.container{
padding: 15px;
border: 12px solid #23384E;
background: #28BAA2;
margin-top: 10px;
}
</style>
<script>
$(document).ready(function(){
$(".container").eq(1).css("background-color", "green");
});
</script>
</head>
<body>
<h3>This is eq() method example</h3>
<div class="container">
<p>A paragraph in a div.</p>
<p>Another paragraph in a div.</p>
</div>
<br>
<div class="container">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
<br>
<div class="container">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
</body>
</html>
Output
This is eq() method example
A paragraph in a div.
Another paragraph in a div.
A paragraph in another div.
Another paragraph in another div.
A paragraph in another div.
Another paragraph in another div.
jQuery filter() Method
Using the jQuery filter () method can return the elements that match certain criteria. This method lets you specify a benchmark. Elements that do not match the criteria are removed from the selection, and those who match will be returned.
Syntax filter() Method
$("selector").filter();
jQuery filter() method By Example
This example will display the jQuery filter method. In this example, the jquery filter method filters only those elements that match the criteria and make the background color white.
<!DOCTYPE html>
<html>
<head>
<title>jQuery Filter() Method Example</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<style type="text/css">
.container{
padding: 15px;
border: 12px solid #23384E;
background: #28BAA2;
margin-top: 10px;
}
</style>
<script>
$(document).ready(function(){
$("p").filter(".inClass").css("background-color", "white");
});
</script>
</head>
<body>
<h3>This is Filter() method example</h3>
<div class="container">
<p>A paragraph in a div.</p>
<p class="inClass">Another paragraph in a div.</p>
</div>
<br>
<div class="container">
<p>A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
<br>
<div class="container">
<p class="inClass">A paragraph in another div.</p>
<p>Another paragraph in another div.</p>
</div>
</body>
</html>
Output
This is Filter() method example
A paragraph in a div.
Another paragraph in a div.
A paragraph in another div.
Another paragraph in another div.
A paragraph in another div.
Another paragraph in another div.
jQuery not() Method
Using the not () method is returned to those elements which do not meet specific criteria. This method lets you specify a benchmark. Elements that do not match the criteria are returned from selection and those that will be removed from the match.
This is not the opposite () method filter () method.
Syntax not() Method
$("selector").not();
jQuery not() method By Example
This example will display the jQuery not method. In this example, the jquery not method filters only those elements that do not match the criteria and make the background color white.
<!DOCTYPE html>
<html>
<head>
<title>jQuery Not() Method Example</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<style type="text/css">
.container{
padding: 15px;
border: 12px solid #23384E;
background: #28BAA2;
margin-top: 10px;
}
</style>
<script>
$(document).ready(function(){
$("b").not(".inClass").css("background-color", "Red");
});
</script>
</head>
<body>
<h3>This is Not() method example</h3>
<div class="container">
<b>A paragraph in a div.</b>
<b class="inClass">Another paragraph in a div.</b>
</div>
</body>
</html>
Output
This is Not() method example
jQuery slice() Method
Slice () method reduces the matching set of elements to the subset specified by a range of indices. This method accepts two integer values, index and end index starts. This method will return the elements between the start and the end index. The subset of elements consists of an element in the start index, but does not include the element in the end index.
Syntax slice() Method
$(selector).slice(start,stop);
jQuery slice() method By Example
This example will demostrate of jQuery slice method.
<!DOCTYPE html>
<html>
<head>
<title>jQuery slice() Method Example</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<style type="text/css">
.container{
padding: 15px;
border: 12px solid #23384E;
background: #28BAA2;
margin-top: 10px;
}
</style>
<script>
$(document).ready(function(){
$(".slclass").slice(2).css("background-color", "Yellow");
});
</script>
</head>
<body>
<h3>This is slice() method example</h3>
<div class="container">
<p class="slclass">A paragraph in a div.</p>
<p class="slclass">Another paragraph in a div.</p>
<p class="slclass">A paragraph in another div.</p>
<p class="slclass">Another paragraph in another div.</p>
<p class="slclass">A paragraph in another div.</p>
<p class="slclass">Another paragraph in another div.</p>
</div>
</body>
</html>
Output
This is slice() method example
A paragraph in a div.
Another paragraph in a div.
A paragraph in another div.
Another paragraph in another div.
A paragraph in another div.
Another paragraph in another div.
