geekbutchic/todo-persistence

Todo - Persistence

Persistence In 3 Easy (?) Steps

Refer to the finished codealong if you get lost in the details!

1. Read the todos in.

   • at the bottom of the file, read the JSON file with fs.readFile. You'll find the path to the file in the PATH_TO_TODOS_FILE variable. You'll pass in the path to the file as well as a callback function.
   • In that function, populate your todos array with the todos key on the object you get when you parse the JSON data.
   • Then run your displayTodos function. (Before now, you don't have any todos!)

2. Define a saveTodos function. It will:

   • Make an object whose key is our todos array
   • Stringify that object into JSON.
   • Run fs.writeFile, passing in the same path as well as our stringified object, the string utf8, and a callback function. The callback should:
     • deal with any errors
     • console.log out that the changes have been saved
     • Run displayTodos (you might have to move any console.clears around to make sure that you don't clear your changes-have-been-saved message!)

3. Add a call to saveTodos any place where you make a change to your todos array.

Stretch Goals

Coming soon!