How to load wordpress posts via ajax?

Question

JavaScript

I need a post filter function without reloading the page.
I understand how to make ajax loading of the same query request (make a separate page with a loop and load it .load(mysite_php.url + "/ajax-posts");
but how to load a modified query, that is, for example, the site has a slider slider and the user, moving it, modified the query, for example, increased the value of showposts, which would lead to loading query_posts('showposts=20'); instead of query_posts('showposts=10');
vaguely written but I hope you understand

Answer 1

Pass parameters to post
api.jquery.com/jquery.post