Introduction to jQuery prepend()
The jQuery prepend( ) method uses to pre append the specified content of the selected HTML elements. This method is a built-in method of jQuery. This method is used to insert the selected HTML element’s content at the beginning of the first child. This method does the opposite of the jQuery append( ) method, as the jQuery prepend( ) method inserts the content at the end of the selected HTML elements.
Syntax:
$(selector).prepend( content, function( index, Currenthtml )
This method is used to get the value of a selected element.
Parameters:
- content: content parameter is not an optional parameter, which is used to specifies the content to be inserted. The content parameter can accept the values as jQuery objects, HTML elements, and DOM elements.
- function ( index, currenthtml ): function ( index, Currenthtml ) parameter is the optional parameter, which it uses to specifies the name of a function to execute and return the content to be inserted.
- Index: Index is used to specify an index position of the selected HTML element’s content.
- Currenthtml: Currentvalue is used to specify the current HTML of selected HTML element’s content.
Examples of jQuery prepend( )
Below are the examples with content parameters.
Example #1
Here, we write the HTML code to understand the jQuery prepend ( ) method more clearly with the following example where we apply the prepend ( ) method to the content of the first and second heading elements.
Code:
<!DOCTYPE html>
<html lang= "en" >
<html>
<head>
<meta charset= "utf-8" >
<script type = "text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js" >
</script>
<title> This is an example for jQuery prepend( ) method </title>
<!-- code to show the jQuery prepend( ) working method -->
<script>
$(document).ready(function(){
$("#btn").click(function(){
$("h1").prepend("<b> Heading prepended </b>. ");
});
});
</script>
</head>
<body>
<h1>This is the first heading.</p>
<h1>This is the second heading.</p>
<button id="btn"> Click here to prepend text </button>
</body>
</html>
Output:
Once the Click button click, the output is:
In the above code, the prepend( ) method is using. As the use of prepend( ) method is to insert specified content at the start or as the front side of the selected elements in the jQuery collection is showing in the above output.
Example #2
This is an example code where the jQuery prepend( ) method is used to pre append the text to the headings and to list of elements as well, as in the below code.
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Code:
<!DOCTYPE html>
<html lang= "en" >
<html>
<head>
<meta charset= "utf-8" >
<script type = "text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js" >
</script>
<title> This is an example for jQuery prepend( ) method </title>
<!-- code to show the jQuery prepend( ) working method -->
<script>
$(document).ready(function(){
$("#btn").click(function(){
$("h1").prepend("<b>Prepended text</b>. ");
});
$("#btn1").click(function(){
$("ol").prepend("<li>Prepended item</li>");
});
});
</script>
</head>
<body>
<h1>This is the first heading.</p>
<h1>This is the second heading.</p>
<ol>
<li> List item no.1 </li>
<li> List item no.2 </li>
<li> List item no.3 </li>
</ol>
<button id="btn"> Heading Prepend </button>
<button id="btn1"> list item Prepend </button>
</body>
</html>
Output:
Once we click the “ heading prepend ” button, the output is:
Once we click the “list item prepend ” button, the output is:
Example #3
In the next example code, we rewrite the above code for the jQuery prepend() method to pre append text in property boxes. As shown in the below code.
Code:
<!DOCTYPE html>
<html lang= "en" >
<html>
<head>
<meta charset= "utf-8" >
<script type = "text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js" >
</script>
<title> This is an example for jQuery prepend( ) method </title>
<!-- code to show the jQuery prepend( ) working method -->
<script>
$(document).ready(function(){
$("#btn").click(function(){
$("h1").prepend("<b>Prepended text</b>. ");
});
$("#btn1").click(function(){
$("ol").prepend("<li>Prepended item</li>");
});
});
</script>
<style>
h1 {
width : 400px;
height: 100px;
font-weight : bold;
padding : 40px;
font-size : 20px;
border : 2px solid red;
}
</style>
</head>
<body>
<h1> This is the first heading. </h1>
<h1> This is the second heading. </h1>
<ol>
<li> List item no.1 </li>
<li> List item no.2 </li>
<li> List item no.3 </li>
</ol>
<button id="btn"> Heading Prepend </button>
<button id="btn1"> list item Prepend </button>
</body>
</html>
Output:
Once we click the “ heading prepend ” button, the output is:
Once we click the “list item prepend ” button, the output is:
Example #4
Next example code where the jQuery prepend ( ) method to accept a function and which is executed to insert the pre append text. As shown in the below code.
Code:
<!DOCTYPE html>
<html lang= "en" >
<html>
<head>
<meta charset= "utf-8" >
<script type = "text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js" >
</script>
<title> This is an example for jQuery prepend( ) method </title>
<!-- code to show the jQuery prepend( ) working method -->
<script>
$(document).ready(function() {
$("#btn").click(function() {
$("h1").prepend(function() {
return "<b> Prepended text </b> ";
});
});
});
</script>
<style>
h1 {
width : 400px;
height: 100px;
font-weight : bold;
padding : 40px;
font-size : 20px;
border : 2px solid red;
}
</style>
</head>
<body>
<h1> This is the first heading. </h1>
<h1> This is the second heading. </h1>
<!-- Click on this button to see the change -->
<button id="btn"> Heading Prepend </button>
</body>
</html>
Output:
Once the Click button click, the output is:
Conclusion
- The jQuery prepend( ) method uses to pre append the specified content of the selected HTML elements. It is the opposite of the jQuery append( ) method, where the jQuery prepend( ) method append at the end of the selected HTML elements.
- The syntax is $(selector).prepend( content, function( index, Currenthtml ), the Parameters are content used to specify the content to be pre appended, function (index, currenthtml) used to specify the name of a function to execute, index used to specify an index position of the element and currenthtml used to specify the current HTML element.
Recommended Articles
This is a guide to jQuery prepend(). Here we discuss the parameters along with the examples and code implementation. You may also look at the following articles to learn more –
