Function $A

src/prototype/lang/array.js:60–68

section: Language, related to: Array * $A(iterable) -> Array * * Accepts an array-like collection (anything with numeric indices) and returns * its equivalent as an actual [[Array]] object. This method is a convenience * alias of [[Array.from]], but is the preferred way of casting to an [[A

(iterable)

**/

function $A(iterable) {
  if (!iterable) return [];
  // Safari <2.0.4 crashes when accessing property of a node list with property accessor.
  // It nevertheless works fine with `in` operator, which is why we use it here
  if ('toArray' in Object(iterable)) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

/** section: Language, related to: Array
 *  $w(String) -> Array