Table of contents

Introduction

What is Cloning?

jQuery

How To Clone A Block Using Jquery

4.1.

Syntax

4.2.

Examples

4.2.1.

Example1

4.2.2.

Example2

Frequently Asked Questions

5.1.

How to clone a block using JQuery?

5.2.

How do I insert the cloned block into my webpage?

5.3.

How to clone multiple blocks of code at once?

Conclusion

Last Updated: Mar 27, 2024

Easy

How to Clone a Block Using JQuery

Author Kanishk Singla

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Introduction

In web development, efficiency and interactivity are vital factors in creating dynamic user experiences. jQuery, a popular JavaScript library, offers a range of functions that simplify many everyday tasks. In this blog, we will explore one such task, i.e., how to clone a block using JQuery. It allows you to copy and alter elements on your web page effortlessly.

This blog will show how to clone a block using JQuery. We will also discuss some programming code for better understanding. Are you ready to learn? Let's get started!

What is Cloning?

In web development, cloning is copying an HTML element, including all its styling, attributes, and child elements. It is the most efficient and time-saving way when dealing with repetitive or building dynamic content. Instead of creating these elements manually, again and again, the cloning process helps you a lot.

jQuery

JQuery is a powerful and compact javascript library. It can run in various browsers and is cross-platform.

It is popularly called "Write less, do more" because it performs many tasks in fewer lines of code than JavaScript. You can download the library or use a Content Delivery Network (CDN) to include it directly in your HTML file. Add the below script tag in the head section of your HTML file:

jQuery Core 3.7.0

<script src="https://code.jquery.com/jquery-3.7.0.js" integrity="sha256-JlqSTELeR4TLqP0OG9dxM7yDPqX1ox/HfgiSLBj8+kM=" crossorigin="anonymous"></script>

How To Clone A Block Using Jquery

This section will discuss how to clone a block using jQuery. The jQuery clone technique can copy div, button, label, text, or anything on your web page.

Syntax

Let's see the syntax to clone a block of code using jQuery.

var block_clone = $("selector(eg. class or id)").clone(parameters)

Parameters Value:

True- Specifies that the event handlers should also be copied
False(By Default)- Specifies that the event handlers should not be copied.

Examples

Now we will see some examples for better understanding.

Example1

In this example1, We are creating a simple webpage that will clone an element when we click the Click to Clone button. Let us see the code and output for better clarity. We are not passing any parameter to the clone method. So by default, the parameter value will be false.

Code:

<!DOCTYPE html>
<html>

<head>
	<script type="text/javascript" src="https://code.jquery.com/jquery-1.12.0.min.js">
	</script>

	<style>
		#highlight {
			display: inline-block;
			position: absolute;
			z-index: -1;
			background-color: lightgreen;
			height: 20px;
			width: 0%;
			transition: width 0.5s;
			transition-timing-function: cubic-bezier(0.165, 0.84, 0.44, 1);
		}

		#item:hover #highlight {
			width: 280px;
		}

		#box {
			border: 4px outset rgb(0, 0, 0);
			justify-content: center;
			width: 80%;
		}

		#btn {
			background-color: #4CAF50;
			color: white;
			padding: 15px 32px;
			text-align: center;
			display: inline-block;
			font-size: 16px;
		}
	</style>

	<script>
		$(document).ready(function () {
			$("button").click(function () {
				$("#item").clone().appendTo("#box");
			});
			$("p").click(function () {
				$(this).css("background-color", "lightpink");
			});
		});
	</script>
</head>

<body>
	<div id="item">
		<div id="highlight"></div>
		<h3>How to clone a block using JQuery</h3>
		<p>
			The jQuery clone technique can copy div, button, label, text, or anything on your web page.

		</p>	
	</div>

	<button id="btn"> Click to clone</button>
	<br><br>

	<div id="box">
		<h3> Result </h3>
	</div>
</body>

</html>

Output:

In this example1, as you can see in the output, when we hover over the first line, "How to clone a block using JQuery," its highlights with green color. When we clone the <div> with the "#item" class using the .clone() function, the text with CSS styling is copied, and it is append after "Result."

We also created one more function: when we click on the data present in <p>, its background changes to pink. But as we clone the element with the default parameter, i.e., ".clone(False)," the same function won't apply to the cloned block. For example1, we can observe the same thing in the above output. As we click on the second lines in our cloned blocks, the background color does not change to pink but changes in the default block.

Example2

In this example2, We are creating a simple webpage that will clone an element when we click the Click to Clone button. Let us see the code and output for better clarity. We also pass the "True" parameter to the clone method that copies the event handlers.

Code:

<!DOCTYPE html>
<html>

<head>
	<script type="text/javascript" src="https://code.jquery.com/jquery-1.12.0.min.js">
	</script>

	<style>
		#highlight {
			display: inline-block;
			position: absolute;
			z-index: -1;
			background-color: lightgreen;
			height: 25px;
			width: 0%;
			transition: width 0.5s;
			transition-timing-function: cubic-bezier(0.165, 0.84, 0.44, 1);
		}

		#item:hover #highlight {
			width: 280px;
		}

		#box {
			border: 4px outset rgb(0, 0, 0);
			justify-content: center;
			width: 80%;
		}

		#btn {
			background-color: #4CAF50;
			color: white;
			padding: 15px 32px;
			text-align: center;
			display: inline-block;
			font-size: 20px;
		}
	</style>

	<script>
		$(document).ready(function () {
			$("button").click(function () {
				$("#item").clone(true).appendTo("#box");
			});
			$("p").click(function () {
				$(this).css("background-color", "pink");
			});
		});
	</script>
</head>

<body>
	<div id="item">
		<div id="highlight"></div>
		<h3>How to clone a block using JQuery</h3>
		<p>
			The jQuery clone technique can copy div, button, label, text, or anything on your web page.

		</p>
	  </div>		
	</div>

	<button id="btn"> Click to clone</button>
	<br><br>

	<div id="box">
		<h3> Result </h3>
	</div>
</body>

</html>

Output:

In this example2, as you can see in the output, when we hover over the first line, "How to clone a block using JQuery," its highlights with green color. When we clone the <div> with the "#item" class using the .clone() function, the text with CSS styling is copied, and it is append after "Result."

We also created one more function: when we click on the data present in <p>, its background changes to pink. The same function will be applied to the cloned block as we clone the element with the True parameter, i.e., ".clone(True)." So, we can observe the same thing in the above output. As we click on the second lines in our cloned blocks, the background color does change to pink as it changes in the default block.

Frequently Asked Questions

How to clone a block using JQuery?

To clone a block using jQuery, include the Content Delivery Network (CDN) in your HTML, select the block you want and then use the clone() method. For example: var Clone = $('#myBlock').clone(); This creates a copy of the block, which you can insert into your webpage anywhere.

How do I insert the cloned block into my webpage?

After cloning the block, you can use various jQuery functions to insert it into your webpage. For instance, we can use the insertAfter(Block_name) method to insert the cloned block after the input block name or the appendTo(element) method to append it to another element.

How to clone multiple blocks of code at once?

You can clone multiple blocks simultaneously using iteration methods in jQuery like each(). You can clone the function in each iteration and insert it anywhere. For example, each(function(){function_code}). Now replace the function_code with the clone function.

Conclusion

We expect this article was insightful and that you learned something new today. In this blog, we learned how to clone a block using JQuery. It helps create repetitive content on our web page easily and in less time. We can make copies of any HTML elements using the ".clone()" function. We discussed its syntax and also saw some examples for better understanding.

If you want to learn more about jQuery, do visit.

You may refer to our Guided Path on Code Studios for enhancing your skill set on DSA, Competitive Programming, System Design, etc. Check out essential interview questions, practice our available mock tests, look at the interview bundle for interview preparations, and so much more!

Happy Learning, Ninja!

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