How to add exclude nodes/keys in JSON during the comparison?

[vignesh-thangaraj]

No description provided.

[espadrine]

Hi Dookiee!

I don’t think you can do it in the current API, short of removing the keys before passing the JSON in.

What is the intent? Is it to speed up computation, or fix incorrect matching?
If it is the latter, you can pass in a custom similarity procedure that handle those keys specifically, and fallback to the default algorithm for others. See:

json-diff/spec/json-diff/diff_spec.rb

Lines 152 to 168 in 6cac576

	similarity = -> (before, after) do
	if before.is_a?(Hash) && after.is_a?(Hash)
	if before[:id] == after[:id]
	1.0
	else
	0.0
	end
	end
	end
	diff = JsonDiff.diff([
	{id: 1, we: "must", start: "somewhere"},
	{id: 2, and: "this", will: "do"},
	], [
	{id: 2, insert: "something", completely: "different"},
	{id: 1, this: "too", is: "different"},
	], similarity: similarity)