[jQuery] Waiting on ajax request before form submit

[Bober]

I have a form.
Before submit it I would like send ajax request.
Based on the ajax request answer I would like to send form or not.

How can I do this?

Code:

$("#invoice_form").submit(function() {
        $.get("/test", function(data) {
               console.log("get answer");
        });
        console.log("sending form");
    });

Now I see:
sending form
get answer,

and I would like to see:
get answer
sending form

so form will be sending before get request will be complete.
Can can I change? Can submit form can wait on complete get request?

Bober