While reading The Stimulus Trigger Pattern blog post I came across Stimulus code that I didn’t recognise.

triggerTargetConnected(_element) {

On checking the Stimulus documentation, I found the Connected and Disconnected Callbacks section.

Where a Stimulus controller is connected to an element, it will listen for newly added elements with data-xxx-target="some-target" and call the someTargetConnected callback.

This is useful when turbo appends new elements to the page.