How to know does a table exist in Adobe AIR SQLite

public function doesTableExist(connection:SQLConnection, tableName:String):Boolean{
    connection.loadSchema();
    var schema:SQLSchemaResult = connection.getSchemaResult();

    for each (var table:SQLTableSchema in schema.tables)
    {
        if (table.name.toLowerCase() == tableName.toLowerCase())
        {
            return true;
        }
    }
    return false;
}

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