How to change selected item in jQuery

This question already has an answer here:

Change the selected value of a drop-down list with jQuery 15 answers

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I think your first try was the right try.

 $('#slc').val('3');

It does seem to work: https://jsfiddle.net/crix/hdtndzkb/

Did you include the jquery library right? Does your code gets hit? Just try to see if it does by add a console.log() entry.

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$("#slc option[value=3]").prop('selected', 'selected');//get option with value 3 and set selected

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<select id="slc">
  <option value="1">1</option>
  <option value="2">2</option>
  <option value="3">3</option>
</select>

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When do you fire the code? Maybe you should just wrap it in a document.ready function? I made this, and it works like a charm: https://jsfiddle.net/41bna2e9/

$(document).ready(function(){
    $("#slc").val("2");
});

Hope that it helps!

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