Replacing JS Function

Replacing JS Function

New to JQuery, but making progress, not sure how to describe this issue, so stay with me.

In JS I would build a function that I could call from a variety of actions, including other functions.

eg..
function dosomething(someparam){
  // does something.
}
function dothis(){
  //do this thing, then...
  dosomething('somevalue');
}



In JQuery I would call a method using the selector
eg.
  $('#someselectorID').click(function(){
   alert('you clicked on this thing');
  });


What I can't see yet, is how to call the action assigned to that selector from another method. (Just as I would call another function in JS.)

ie.
 
  $('#someotherselector').click(function(){
    alert('Ok, what did you do?');
    //now call the method associated with the #someselectorID
  });


Then I could call that common action from any method.

I'm sure it's a dumb question and have been looking all over for the solution, I assume there is one, but that might be wrong too.

TIA!