javascript - change attrib name with array -

i have form input:

<input id="cant_user" type="text" name="cant_user" value="1" onblur="addinputs()"> 

#userdata cloned when add input value greater 1 , want change input name user_age age[n]

<div id="userdata">     <div class="panel-body" id="generated[0]">         <div class="form-group">             <label class="col-md-4 control-label">age user [n]</label>         <div class="col-md-6">             <input type="number" class="form-control" name="user_age[]" value="0" required>         </div>     </div> </div> 

javascript:

function addinputs() {   var cantusers = document.getelementbyid("cant_user").value;   var countgenerated = $('[id^=generated]').length;   if (countgenerated > 0) {     $('[id^=generated]').not(':first').remove();   }   if (cantusers != 1) {     if (cantusers > 1 && cantusers < 10) {       (var = 1; < cantusers; i++) {         jquery("#userdata").append(jquery("#userdata").children().first().clone());         jquery("#userdata").children().last().attr("id", "generated[" + + "]");          (var n = 0; n <= i; m++) {           var u = document.getelementsbyname("user_age[]");           $(u).removeattr("name").attr({             id: "generatedage[" + n + "]",             name: "age[" + n + "]"           });         }       };     }   }; } 

how can make every label , input name shows value array like:

<label>age user 1<label> <input name="age[0]"> <label>age user 2<label> <input name="age[1]"> 

i changed code, maybe can if understand idea correct

for ( var = 1; < cantusers; i++) { var userdata = jquery("#userdata"); var childofuserdata = userdata.children(); userdata.append( childofuserdata.first().clone() );   childofuserdata = userdata.children(); //because appen new data childofuserdata.last().attr("id","generated[" + + "]"); ( var n = 0; n <= i; n++ ) {     var child =  childofuserdata.get(i);     var userage = $("input", $(child));//because have 1 input     userage.attr("name","age[" + n + "]").attr("id","generatedage[" + n + "]"); } 

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