JavaScript Set value to an aria-controls input value aria-controls,invalid aria attribute value aria-controls

I want to set an input aria-control value. But I can't do it using the traditional jQuery way.

My code is this one:

function showMessage() {
  var message = jQuery("#textToDisplay").val();
  $("#example").text(message);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" id="textToDisplay" />
<input type="button" value="Add message" onClick="showMessage()" />
<input aria-controls="example" type="text">
Answer:1

Change the selector like this.your selector target the id not the aria-controls so use with attr selector.Also Input not have text() property so change with val()

function showMessage() {
 var message = jQuery("#textToDisplay").val();
 $("input[aria-controls=example]").val(message);
  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" id="textToDisplay" />
<input type="button" value="Add message" onClick="showMessage()" />
<input aria-controls="example" type="text">
Answer:2

Use attr selector

Selects elements that have the specified attribute with a value exactly equal to a certain value.

$( "input[aria-controls='example']").val(message);
Answer:3

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