How to include javascript in jsp

You might find yourself repeatedly importing the same file in every JSP that utilizes the custom tag, which can lead to errors and becomes cumbersome to manage.

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Understanding the Problem

The Challenge:

• You have a
• Importing the library in every JSP that includes the is repetitive and error-prone.
• You want to import the JS script without compromising performance, particularly for caching reasons.

The Desired Outcome:

The Solution: Embedding Script Tags in Your JSP Tag

Here’s how to do it effectively:

1. Add the Script Tag: Place a tag at the beginning of your JSP tag.

   While it’s generally recommended to include script tags in the section of HTML, including it in the body before your markup will work as well.

2. Prevent Duplicate Imports: It’s essential to ensure that your script is not imported multiple times, especially if you are employing the tag multiple times on the same page.

   To achieve this, keep track of whether the script has already been added by utilizing an attribute in the request object.

Code Explanation

• First Statement: The tag check
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