var mayTodoAppmyTodoApp = new todoApp();
Then Youryour jQuery call after that, outside of your constructor, not in:
It is defined inside of curly brackets { } the key is a name to reference the value, and does not need quotes. The value needs quotes unless you want to use a variable. Also numbers do not need quotes for the values. Values can be objects or arrays as well. And the pairs are delimited by a comma ,. As long as you follow these rules javascript does the rest.