Usually I use $(\"#id\").val() to return the value of the selected option, but this time it doesn\'t work. The selected tag has the id aioConceptName
$(\"#id\").val()
aioConceptName
Try
aioConceptName.selectedOptions[0].value
let val = aioConceptName.selectedOptions[0].value console.log('selected value:',val);
Name choose io roma totti