Ajax requests and urls?

Question

JavaScript

Good afternoon,
the script is running from the url mysyte.com/objects/
I need to send a request to mysyte.com/api/myfunc.php
I write $.post( "/api/myfunc.php", .... - As a result, the request is sent according to the folder and looks like mysyte.com/objects/api/myfunc.php , but I don’t need it
And again, I can’t enter the full address, because the data will be transferred. from him.
Tell me how to do it?
Thank you