javascript - Changing values with jQuery -

i have following:

<span class="label-info">3</span> 

i have following jquery

var replaceit = $(this).closest(':has(.label-info)').find('.label-info').text(); 

the value of variable single whole number not 3:

ie: 1, 2, 3, 4, 5. 

i have tried numerous ways , cannot value change. latest attempt was:

return $(this).closest(':has(.label-info)').html().replace(replaceit, (replaceit - 1));  

my end result, subtract 1 whatever current value of "lable-info" is, , switch new result. new span based on value of 3 become.

<span class="label-info">2</span> 

how achieve this?

updated code more clarity

html:

<div> <span class="lable-info">3</span> </div>  <div>    <a class="accept_friend">accept</a> </div> 

javascript:

    $(document).on("click", "a.accept_friend", function() {          var checkvalue = $(this).closest(':has(.name)').find('.name').text();         var removeit = $(this).closest(':has(.item)').find('.item').fadeout();         var replaceit = $(this).closest(':has(.label-info)').find('.label-info').text();         $.ajax({             url: '/includes/accept_friend.php',             type: 'post',             data: {checkvalue},             success:function(data){             return removeit;             $("a.remove_pending").text(function () {             return ('.label-info').html().replace(replacei, replaceit);          });     } 

notes:

i not using id. using class. there multiple classes same name. have call closest.

getting value span, subtracting 1 , updating span(using jquery):

html

<span class="label-info">3</span> 

jquery

var n  = $(".label-info").text(),     n2 = n - 1; $(".label-info").text(n2); 

hope helps bit