function roughSizeOfObject( object ) { var objectList = []; var stack = [ object ]; var bytes = 0; while ( stack.length ) { var value = stack.pop(); if ( typeof value === 'boolean' ) { bytes += 4; } else if ( typeof value === 'string' ) { bytes += value.length * 2; } else if ( typeof value === 'number' ) { bytes += 8; } else if ( typeof value === 'object' && objectList.indexOf( value ) === -1 ) { objectList.push( value ); for( var i in value ) { stack.push( value[ i ] ); } } } return bytes; }