dsherret

/* Typescript conversion of Ben Nadel's Collection class.

 Based on the fact that subclassing Array directly does not work very well,
 at least in Ecmascript versions < 6. Instead, this is based on creating a
 collection from an array, where the actual methods are added to the array
 after creation.

 It works exactly like an array, while at the same time having additional
 functionality.
 */