It would be nice to have Ruby-like shortcuts for map(), so that one would be able to say:

$('table td.amount').map('innerHTML');

instead of

$('table td.amount').map(function() {
  return this.innerHTML;
});

or

$('#cardwall .tickets').map('getAttribute', 'data-hours');

instead of

$('#cardwall .tickets').map(function() {
  return this.getAttribute(data-hours);
});

or

$('.post .body').map('$excerpt', 100);

instead of

$('.post .body').map(function() {
  return $(this).excerpt(100);
});