Programmatically identifying writable drafts vs plain objects?
matthewoates opened this issue · comments
🙋♂ Question
How can you programmatically check if something is a writable draft as opposed to a plain object?
When I console.log my state provided by my redux slice's reducer argument I see something like:
state: <ref *1> {
type_: 0,
scope_: {
drafts_: [
[Circular *1], [Object],
[Array], [Object],
[Object], [Object],
[Object], [Object],
[Object], [Array],
[Object], [Object],
[Array]
],
parent_: undefined,
immer_: Immer {
// ... etcbut these properties (type_, scope_, ...) don't exist on the object that I logged. The constructor appears to be a plain Object, so I'm at a loss for runtime checking if an object is a writable draft.
Why am I even trying to do this? I'm using a helper function to lazily create a pseudo-random number generator using the writable draft state as a key (which also contains serialized data for the rng object) and I want to doubly make sure that I'm passing in the right data to this function.
Oof. Lazy me. Works like a charm.