detailedDiff doesn't return deleted elements

[joniba]

Deleted doesn't seem to work in the detailedDiff method. Examples:

let b1 = { a: 1 }
let b2 = {  }
console.log(JSON.stringify(differ.detailedDiff(b1, b2))); //output: {"added":{},"deleted":{},"updated":{}}

let b1 = { a: 1 }
let b2 = { b: 3 }
console.log(JSON.stringify(differ.detailedDiff(b1, b2))); //output: {"added":{"b":3},"deleted":{},"updated":{}}

[mattphillips]

Hey @joniba looks like this is happening because you are using JSON.stringify which doesn't support undefined which is used by this library to represent deleted values.

I think this is a duplicate of #10. This comment shows how you can use JSON.stringify with the deleted elements of a diff: #10 (comment)

Going to close this but feel free to re-open / comment should I have misunderstood anything 😃