Static vs dynamic targets

When creating a watcher with Hitbox, you provide a elements parameter (and possibly a targetElements parameter) that determines the elements you want to watch.

The type of this argument matters if you need to watch elements added to the DOM later:

• If this element is a Node or a NodeList (typically provided by document.querySelector() and document.querySelectorAll() functions), the targets will be static. This means that if you add an element after the initialization of the watcher, it won't be taken in account.

• If this element is a string representing a CSS selector, the targets will be dynamic: if you add later an element matching the selector, it will be taken in account for collisions detection.