$init keyname appeares on result automatically

[omidmaldar]

$init keyname appeares on result automatically

[doowb]

Will you do console.log(Object.keys(subdocument)); before sending the subdocument to omitEmpty?

[doowb]

Does it have anything with boolean values on this specific document. I never faced it on other cases.

I don't know, but I think it's a value that MongoDB (or mongoose if you're using that as an ORM) puts on there to track if updates need to be sent to the database.

Depending on the library that you're using to access MongoDB, there should be a way to get just the JSON object from the "model instance" (I don't know what else to call that object). That object will probably be one that you can use to pass to omitEmpty.

I'm going to close this issue since it's not a bug in omit-empty. Feel free to open a new issue if you do find something else in omit-empty.

[omidmaldar]

Ok, I found it. I should have used .toJSON() This the output of Mongodb that have this additional key. If I use subducument.toJSON() then the $init disapears from it. See here for example: https://spectrum.chat/mongodb/general/what-is-init-trying-to-pull-out-array-of-key-names-from-nested-object~91b2f6df-fd61-411d-8be3-cda6b3afdf9b

Thank you for your answer and help @doowb.

[doowb]

I just installed the latest version from NPM and ran the code above and I don't see the $init: true being output:

Are you passing in a plan object? Or are you passing in an object that was created by something else that might have the $init property on it?

[omidmaldar]

I'm using version 1.0.0 and yes, the object I'm sending to omitEmpty is a subdocument which is returned by MongoDB. The subdoc/object has 6 fields all of Boolean type. I checked the output of Mongo on its find query as well as the original doc in db. None of them has the $init. It's added to object after passing it to omitEmpty.

[omidmaldar]

I did. I confirm that the $init is there before sending to omitEmpty. This is interesting, $init is there when I use console.log(Object.keys(subdocument)); but not when I simply use console.log(subdocument);
Does it have anything with boolean values on this specific document. I never faced it on other cases.