code: function stringifyStrictObjectMemory( v , runtime )
  {
  	var k , comma = false ;
  	
  	runtime.str += '{' ;
  	
  	for ( k in v )
  	{
  		if ( v[ k ] !== undefined && v.hasOwnProperty( k ) )
  		//if ( v[ k ] !== undefined )	// Faster, but include properties of the prototype
  		{
  			if ( comma ) { runtime.str += ',' ; }
  			stringifyString( k , runtime ) ;
  			runtime.str += ':' ;
  			stringifyAnyType( v[ k ] , runtime ) ;
  			comma = true ;
  		}
  	}
  	
  	runtime.str += '}' ;
  }
docs: A bit slower than stringifyStrictObject(), but use slightly less memory