What is the role of is_page() in the provided PHP code?

The is_page() function in the provided PHP code is used to check if the current page being displayed is a WordPress page. It is commonly used in WordPress themes to conditionally display content based on the page being viewed. To fix any issues related to is_page(), ensure that the function is being used correctly within the WordPress loop and that the page ID or slug is being passed as a parameter.

<?php
if ( is_page( 'about' ) ) {
    // Display specific content for the 'About' page
} elseif ( is_page( 'contact' ) ) {
    // Display specific content for the 'Contact' page
} else {
    // Display default content for other pages
}
?>