code: function( items, fn ) {
  		var i, l;
  
  		if ( munit.isArray( items ) ) {
  			for ( i = -1, l = items.length; ++i < l; ) {
  				if ( fn( items[ i ], i, items ) === false ) {
  					break;
  				}
  			}
  		}
  		else {
  			for ( i in items ) {
  				if ( fn( items[ i ], i, items ) === false ) {
  					break;
  				}
  			}
  		}
  
  		return items;
  	}
docs: Iteraction utility