What does `register_post_type()` do and which hook should it be called on?

Question

WordPress Fundamental — Medium

What does `register_post_type()` do and which hook should it be called on?

Accepted Answer

The `register_post_type()` function in WordPress is used to create a custom post type with specific labels, capabilities, and supports. It should be called on the init hook to ensure it runs at the right time during the WordPress loading process.