javascript - How to make the select option tag fill the action attribute with an url so it can open that website -

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i need option value fill in action attribute in form can open website. code doesn't work. missing complete process?

<form action=" " name="test">  <select name="url">   <option value="google">google</option>   <option value="yahoo">yahoo</option>  </select> <input type="submit"/> </form>  <script>  $("form").submit(function () {  var selectval = $('select').value();  var url = '';   if(selectval == "google") url = 'http://www.google.com';   else if(selectval == "yahoo") url = 'http://www.yahoo.com';    if(url != ''){     window.open(url, '_blank');   }    });   </script>

i need option value fill in action attribute in form can open website. code doesn't work. missing complete process?

<form action="">  <select name="url">     <option value="https://www.google.com">google</option>     <option value="https://www.yahoo.com">yahoo</option>  </select>     <input type="submit"/>  </form>   <script>   function setdata(){   var select = document.getelementbyid('url');   var test_id = select.options[select.selectedindex].value;   document.form.action = test_id;   form.submit();   }  </script>

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