Feature request: support async calls on validate and / or on change

[Baumgaer]

Feature request: support async calls on validate and / or on change

[DarrenPaulWright]

I think I'll need a code sample of this. This sounds like something we may be able to solve outside of the library.

[Baumgaer]

the example could something like this:

onChange(array, (path, value, prev) => {
    // On change stuff here
}, {
    onValidate: async (...args) => {
        const result = await lib.doExpensiveValueCheckInWebWorker(...args);
        if (result instanceof Error) return false;
        return true
    }
})

May be let the expensive value check a check of a schema for example a mongoose schema check on client side.
Depending on the size of the schema, this can take much resources and the browser would freeze.

Currently async functions just would resolved to some other value than "true" and onChange would not set the value.

[DarrenPaulWright]

I agree with Sindre on this. You'll need to add a queue and async functionality within the callbacks.