Check in behavior code at which instance plugin?

How can I check in behavior code the instance plugin?

I know the instance has the plugin object in it (inst.type.plugin), but how to compare? Is there a possiblity in JavaScript to do it directly? Object name to sting?

Plugins dont have a for all exist name string or something else in, or did I miss something?

In Editor it has:

You might try it.

https://github.com/rexrainbow/C2_plugin ... ime.js#L97

Ahhh "instanceof".

Time to learn JavaScript!

Thank you very much!