javascript - set selected value for dropdowns -


the below code works 1 time not every time 

 var selectedval = $('#drpgender_0').find("option:selected").text();      if (selectedval == "male") {         $('#drpgender_1').find("option:contains('male')").text('male').attr("selected", false);         $('#drpgender_1').find("option:contains('female')").text('female').attr("selected", "selected");     }     else if (selectedval == "female") {          $('#drpgender_1').find("option:contains('female')").text('female').attr("selected", false);         $('#drpgender_1').find("option:contains('male')").text('male').attr("selected", "selected");      } };

thanks in advance

$('#drpgender_0').on('change', function() {    var selectedval = $('#drpgender_0').val();      if (selectedval == "male") {      $('#drpgender_1').val('female');    } else if (selectedval == "female") {      $('#drpgender_1').val('male');    }  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>  <select id="drpgender_0">    <option value="">select gender</option>    <option value="male">male</option>    <option value="female">female</option>  </select>    <select id="drpgender_1">    <option value="">select gender</option>    <option value="male">male</option>    <option value="female">female</option>  </select>

you can use code

$('#drpgender_0').on('change', function() {   var selectedval = $('#drpgender_0').val();    if (selectedval == "male") {     $('#drpgender_1').find("option:contains('female')").attr("selected", "selected");    } else if (selectedval == "female") {     $('#drpgender_1').find("option:contains('male')").attr("selected", "selected");   } });

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