html - Jquery, .length + 1 seems to be adding multiples of 7 -


i have jquery script add input fields @ click of button, need these numbering up, there 4 fields called first:

jsfiddle link http://jsfiddle.net/1orkxk2y/

ptno1 desc1 qty1 amnt1

when add field clicked expected ended numbers in brackets:

ptno2(7) desc2(7) qty2(7) amnt2(7)

code below:

$(document).ready(function() {     $("#add").click(function() {         var intid = $("#test div").length + 1;         var fieldwrapper = $("<div id=\"test\" class=\"row\"/>");         var fptno = $("<div class=\"col-md-2\"><input type=\"text\" name=\"ptno" + intid + "\" class=\"form-control\" /></>");         var fdesc = $("<div class=\"col-md-2\"><input type=\"text\" name=\"desc" + intid + "\" class=\"form-control\" /></>");         var fqty = $("<div class=\"col-md-2\"><input type=\"text\" name=\"qty" + intid + "\" class=\"form-control\" /></>");         var famnt = $("<div class=\"col-md-2\"><input type=\"text\" name=\"amnt" + intid + "\" class=\"form-control\" /></>");         var removebutton = $("<div class=\"col-md-2\"><input type=\"button\" class=\"remove\" value=\"-\" /></>");         removebutton.click(function() {             $(this).parent().remove();         });         fieldwrapper.append(fptno);         fieldwrapper.append(fdesc);         fieldwrapper.append(fqty);         fieldwrapper.append(famnt);         fieldwrapper.append(removebutton);         $("#buildyourform").append(fieldwrapper);     }); });  <fieldset id="buildyourform"> </fieldset> <input type="button" value="add charge" class="add" id="add" />

the expression $("#test div") every div inside every #test. since add 5 div inside #test each time, length attribute increment 5. perhaps use global variable instead of reading dom each time?

var intid = 1;  $(document).ready(function() {     $("#add").click(function() {         var fieldwrapper = $("<div id=\"test\" class=\"row\"/>");         var fptno = $("<div class=\"col-md-2\"><input type=\"text\" name=\"ptno" + intid + "\" class=\"form-control\" /></>");         ...         intid++;     }); });

edit: tim lewis pointing out multiple id attributes produces invalid html.


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