How to get a value of an element by name instead of ID

Question

How could I get the value of an element via the attribute name instead of the ID. eg if I use by id it would be $(\'#id\').val();

Answer 1

//name directly given

var meetingDateFrom = $("input[name=MeetingDateFrom]").val();

//Handle name array

 var selectedValues = $('select[name="Roles[]"] option:selected').map(function() {
    arr.push(this.value);
  });