Javascript filter properties out of an object.

gistfile1.js

function without(o) {
  var props = Array.prototype.slice.call(arguments, 1);
  var r = {};
  for (var k in o) {
    if (o.hasOwnProperty(k) && props.indexOf(k) === -1)
      r[k] = o[k];
  }
  return r;
}

without({'keep': 1, 'remove': true}, 'remove');
// {'keep': 1}