function resolveGetter( x ) {
	var dt = dtype( x );
	if ( isAccessorArray( x ) ) {
		return accessorGetter( dt );
	}
	return getter( dt );
}
Returns an accessor function for retrieving an element from an array-like object.

@param {Collection} x - input array
@returns {Function} accessor

@example
var arr = [ 1, 2, 3, 4 ];

var get = resolveGetter( arr );
var v = get( arr, 2 );
// returns 3