What's the best way to avoid code duplication in these two functions that do the same thing?

Question

Given this form (which contains a submit button):

<form id="review_form">
  <input type="submit" id="btn_submit" value="Submit with ajax! (submit button)">
</form>

and this link (to submit the same form):

<a href="#" id="lnk_submit">Submit with ajax! (hyperlink)</a>

In the following jQuery code, when the #btn_submit element is clicked, the form (#review_form) is submitted with ajax:

jQuery.fn.submitWithAjax = function() {
  this.submit(function() {
    $.post(this.action, $(this).serialize(), null, "script");
    return false;
  })
  return this;
};

$(document).ready(function() {
  $("#btn_submit").submitWithAjax();
})

What I want to do is remove the submit button and submit the form using the link above (#lnk_submit) something like this:

$("#lnk_submit").click(function(){ 
   $("#review_form").submit(function() {
    $.post(this.action, $(this).serialize(), null, "script");
    return false;
    }); 
   return false;
});

But the problem is that this duplicates all of the code in jQuery.fn.submitWithAjax defined above.

What's the best way to avoid the code duplication here?

Answer 1

How about you have a function like this:

function submitWithAjax() {
    $("#review_form").submit(function() {
        $.post(this.action, $(this).serialize(), null, "script");
        return false;
    });         
}

And then link both actions to the function:

$(document).ready(submitWithAjax);
$("#lnk_submit").click(submitWithAjax);