I'm sure this is another little copy/paste issue, but I think it's worth changing the name of the argument. In this case convertedData makes less sense to me than something like newTodo or something similar. We want to make our code as easy to read as possible!
https://github.com/FACxBeamery/Week3-toDoList-Thomas-Tom/blob/79a3bfb9e4daa5ca9b8218c8c86b8335d96b12a6/src/handler.js#L26
I'm sure this is another little copy/paste issue, but I think it's worth changing the name of the argument. In this case
convertedDatamakes less sense to me than something likenewTodoor something similar. We want to make our code as easy to read as possible!