How to copy elements and change attributes in jquery

JQuery is a very popular JavaScript library that makes JavaScript easier to use and manage. It can be used for web development and the construction of dynamic user interfaces (UI). In JQuery, there is a very useful function, which is that you can copy an element and change its properties. In this article, we’ll take a deeper dive into this feature and learn how to use it on your website.

In JQuery, to create elements, we can use the $() method. If you enter a CSS selector as a parameter, such as "div" or ".class", then all elements matching that selector will be selected. For example, if you use "$('div')" as the selector, all div elements will be selected. The $() method can also accept HTML tags as parameters to create new elements. For example, if we want to create a new div element, we can use "$('

')".

So how do we use JQuery to create a copy of an element? This requires using the .clone() method. The .clone() method copies the element and all its child elements, adding them to the DOM. For example, if we want to copy a div element with class ".box", we can use the following code:

var box_copy = $('.box').clone();

Now we have successfully created a copy of the element. But what if we want to change the properties of the copy? This requires using JQuery's .attr() method. The attr() method accepts two parameters: attribute name and attribute value. It will set the element's attribute value to the specified attribute value. For example, if we want to change the color of the copy, we can use the following code:

box_copy.attr('background-color', 'red');

In this way, we can change any attribute of the element, such as adding an id, changing the class, or setting the height and Width etc.

But if we want to put the changed copy into the DOM, this requires inserting the original element before or after the copy element. In JQuery, we can achieve this using the .insertAfter() or .insertBefore() method. The .insertAfter() method inserts the elements matched by the selector after the target element, while the .insertBefore() method inserts the elements matched by the selector before the target element. For example, if we want to insert the changed copy after the original element, we can use the following code:

box_copy.insertAfter('.box');

The above code will insert the changed copy after the element with class ".box".

Now that we have learned how to copy elements and change their properties, we can use this feature to dynamically create web page elements. For example, if you want to dynamically add some similar widgets to your website, you can easily do so using this feature.

In short, by using Jquery, we can easily copy and change the properties of elements. This is a very powerful and convenient feature that allows us to simplify our code and control our website more efficiently. I hope this article has provided you with some useful information and insights, thank you for reading.

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