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Introduction
A component without any additions is equivalent to an empty plate with nothing. You need to serve contents into it to make it function properly. f: param provides this functionality to tunnel in required parameters and data elements. This blog will teach you how to use the f: param tag. Have a good time, Ninja!!
f:param Tag
Formally speaking, the f: param tag helps to pass parameters to UI components or pass request parameters. Its behaviour depends on the type of component to which it is attached.
Example 1: Passing parameter to UI/UX component
<h:outputFormat value = "Coding {0}!."> <f:param value = "Ninjas" /> </h:outputFormat>
<h2> <h:outputFormat value="Hello,{0}. You are from {1}."> <f:param value="#{ninja.name}" /> <f:param value="#{ninja.country}" /> </h:outputFormat> </h2>
</h:body> </html>
Output:
Enter your name here ('Ninja'), and click on the submit button.
Display the formatted message, "name" from user input, and "country" from the button parameter.
Frequently Asked Questions
What is JSF?
JSF is a UI development framework similar to React. It is based on components as its building blocks. It connects parts to data sources, directly improving security and efficiency.
What is a UI?
It is the space of user and machine interaction. It forms an integral part of user experience (UX), consisting of visual and functional design. UI aims to make it easier for users to interact with the product.
What is a tag?
A tag is a syntactical way of implementing program logic. These tags are like keywords which define how to display elements on the web browser. For example <html>, <img> etc.
What are the parameters?
Parameters are the input elements that support the proper functioning of a component. Parameters can be of various types depending on the requirement.
What is the prerequisite to running the JSF program?
Java Runtime Environment, JDK, Maven and Apache tomcat facilitate the running of JSF applications.
Conclusion
Finally, you have made it to the end of this article. Congratulations!! You learnt about the f: param tag in JSF in this blog. You went through the tag, its attributes and a sample program.
After reading about the f: param tag, are you not feeling excited to read more articles on the topic of JSF? Don't worry; Coding Ninjas has you covered. To learn, see the JSF.
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