html - How can i check input field that has custom attribute with specific value using jQuery -

i have input fields custom attributes. want check if input field custom attribute has specific value alert match else not match.

(function ($) {     $(".my_class").click(function () {         var custom_attr = $(this).attr('custom_attr');         $("input").each(function () {             var condation = $(this).attr('condation');             if (condation == custom_attr) {                 alert('match');             } else {                 alert('not match');             }         });     }); })(jquery); 

js fiddle link

i think can try regex bases test like

if (!regexp.escape) {    regexp.escape = function(value) {      return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&")    };  }    (function($) {    $(".my_class").click(function() {      var custom_attr = $(this).attr('custom_attr');      var regex = new regexp(custom_attr.split(/\s+/).map(function(value) {        return '(\\b' + regexp.escape(value) + '\\b)'      }).join('|'));      $('input').each(function() {        var condation = $(this).attr('condation');        if (regex.test(condation)) {          alert('match');        } else {          alert('not match');        }      });    });  })(jquery);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>  <div>    <button type="button" name="abc" class="my_class" custom_attr="field1 field2">match</button>  </div>  <div>    <input name="def" condation="field1 user_defined" />    <input name="jkl" condation="field2 user_defined" />    <input name="jkl" condation="field13 user_defined" />  </div>