jquery - Error 'value.is is not a function' when checking if a checkbox is checked -


i'm trying ensure @ least 1 checkbox in group remains checked, i'm having difficulty.

i have multiple checkboxes name starts post_type[. function runs on('change') call fine, problem occurring when check see if input checkbox checked, following error.

value.is not function

can please me troubleshoot code? thanks.

$(document).ready(function($){      $('input[name^="post_type["]', '#site-search').on('change', function(){          var checks = $('input[name^="post_type["]');         var one_checked = is_one_checked(checks);          if(one_checked === false){             $(this).attr('checked', 'true');         }      });  });  function is_one_checked(checks){      var checked = false; // wheteher or not @ least 1 box checked (false default)      $(checks).each(function(key, value){         if(value.is(':checkbox') && value.is(':checked')){             checked = true;         }     });      return checked;  }

the reason why value.is(':checked') doesn't work because in loop, value passed raw dom object. .is() jquery method, you'd have wrap value in jquery object in order use it:

$(value).is(':checked')


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