you can say

  set the todo's name to "Do the laundry"

  set the name of the todo to "Do the laundry"

  set name.todo to "Do the laundry"

The first form is what I would recommend in most cases.

The second form is useful when you want to either highlight the property being set or when you want to tweak how the property binds (e.g. to avoid parenthesizing)

The third form is just there because JavaScript, but it works :)

glad you are enjoying the language!