options.jsonify is always forced to true

[Venryx]

The code in index.js has a bug: https://github.com/agilgur5/mst-persist/blob/master/src/index.ts

Look closely at the highlighted usages:

Note this line:

if (!jsonify) { jsonify = true } // default to true like mobx-persist

And note that there is no line after that which sets the jsonify variable's value.

Basically, the line above forces jsonify to always be true, even if the user explicitly sets it to false.

You probably meant this instead:

if (jsonify == null) { jsonify = true } // default to true like mobx-persist

[agilgur5]

Ah, poop, well that's a dumb mistake 😅 . Thanks for catching this and filing the issue @Venryx !

You probably meant this instead:

if (jsonify == null) { jsonify = true } // default to true like mobx-persist

Actually, I meant undefined, since if jsonify is not specified, it'll be undefined, not null. So that would look like:

if (typeof jsonify === 'undefined') { jsonify = true } // default to true like mobx-persist

At some point I just had jsonify = true as a default arg in the destructuring, and then once I wrote the somewhat complex (and later even more in #15) defaults logic for the storage config, I thought it would make sense to do all defaults outside of destructuring. That clearly invited some bugs 😖 .

=== undefined is meant to replicate how default args work, but I think I'll just make it a default arg instead to fix as I'm already using one for Transforms anyway and, as I found out during its implementation, default args make for better typings too.

[agilgur5]

Fix has been released in v0.1.2