javascript - Concatenate variable into radio button selector -

i trying find value of checked radio button. concatenating variable 'flagname' input selector, , keeps returning undefined. here jquery:

function filterprojects (searchinput) {  var filter = $(searchinput).val(), count = 0; var $projects = $(".projectdisplay"); $projects.show(); $projects.each(function () {   var $currentproject = $(this);   var projectflags = $(this).data();    (var flagname in projectflags) {     var flagvalue = projectflags[flagname];     var checkedinputvalue = $("input[name='" + flagname + "']:checked", "#flagsearchform").val();      if ((checkedinputvalue == "yes" && flagvalue == "0") || (checkedinputvalue == "no" && flagvalue == "1")) {       $currentproject.hide();     }   }    if ($(this).find(".projectname").text().search(new regexp(filter, "i")) < 0) {     $(this).hide();   } });  

}

i trying find value of checkedinputvalue. flagname , flagvalue both return supposed to. in html, have form loops through php array create multiple fieldsets have 3 radio buttons each. here part of html form is:

<form id="flagsearchform" name="flagform"> <div class="grid-unit grid-unit-9-14">   <h4>search flag value</h4>   <div class="flagsearch">     <div class="wrapper grids">     <?php      $flag_names = array("hasbib", "haschoice", "hasebooks", "hasfrbr", "haslcd","hasltp", "hasnlm", "haspeers", "includedewey", "includegovtdocs", "includenonbooks", "includeopacurl", "includeprotection", "includescores"); ?>      <?php foreach ($flag_names $i=>$flag_name):     ?>     <div class="flagfields">       <div class="grid-unit grid-unit-3-14">         <fieldset>           <span class="flagname"><?php echo $flag_name; ?></span>           <input type="button" value="n/a" class="tri-state ignore" id="<?php echo $flag_name; ?>"/>           <input type="radio" name="<?php echo $flag_name; ?>" value="ignore" id="<?php echo $flag_name; ?>-ignore" class="radio-button" checked><label for="<?php echo $flag_name; ?>-ignore">ignore</label>           <input type="radio" name="<?php echo $flag_name; ?>" value="yes" id="<?php echo $flag_name; ?>-yes" class="radio-button"><label for="<?php echo $flag_name; ?>-yes">yes</label>           <input type="radio" name="<?php echo $flag_name; ?>" value="no" id="<?php echo $flag_name; ?>-no" class="radio-button"><label for="<?php echo $flag_name; ?>-no">no</label>         </fieldset>       </div>     </div>     <?php      endforeach;     ?>     </div>   </div> <input type="submit" value="submit" class="flagsearchsubmit"> </div> 

is syntax checkedinputvalue wrong?

i'm not sure filter/regex need completed. logs selected inputs.

here fiddle: https://jsfiddle.net/c4qbywrt/7/

function filterprojects(searchinput) {      $('input:radio').each(function () {         if ($(this).is(':checked')) {              var $currentproject = $(this);             var checkedinputvalue = $(this).val();             var flagvalue = '0'; // not sure setting             if ((checkedinputvalue == "yes" && flagvalue == "0") || (checkedinputvalue == "no" && flagvalue == "1")) {                 $currentproject.hide();             }             var filter = '';             if  ($(this).find(".projectname").text().search(new regexp(filter, "i")) < 0) {                 $(this).hide();             }         }     }); }  $("#searchprojects").keyup(function () {     filterprojects($(this)); }); $("#flagsearchform").submit(function (event) {     event.preventdefault();     filterprojects($("#searchprojects")); });