How to check if the currently viewed page is an endpoint in WordPress?

Question

I have added an endpoint to author links using add_rewrite_endpoint()

I can now have links such as: example.com/author/username/articles

To check when the currently viewed page is the author page ( example.com/author/username ) I can do this:

if ( is_author() )

But how can I check if the currently viewed page is my new endpoint? ie: example.com/author/username/articles

Ref:

https://codex.wordpress.org/Rewrite_API/add_rewrite_endpoint https://codex.wordpress.org/Function_Reference/is_author

Answer 1

I found the answer:

global $wp_query;
isset( $wp_query->query_vars['articles'] )