Pulling data from the redux store is often extracted into functions called "Selectors". Selectors can be simple or complex - but they are used to reduce code duplication.
Selectors are able to pull data out of the store, because they are passed
state as an argument.
Summary of Content:
- Create the new
selectorsfolder, and add a todos file
- Create and use a selector to get all the todo items, just the completed items, and just the uncompleted items -Use those selectors in the TodoList and About screens