Error TS2339: Property 'value' does not exist on type 'ValidationError’

[francjohny]

Current Behavior

Accessing property in union of object types fails for properties not defined on all union members.

error TS2339: Property 'value' does not exist on type 'ValidationError'.
  Property 'value' does not exist on type '{ location?: undefined; param: "_error"; msg: any; nestedErrors: ValidationError[]; }'.

Possible Solution

#794

Environment

TypeScript v3.7.2

[gustavohenke]

You would have to check the discriminator, so

if (error.param === '_error') {
  // has nestedErrors
} else {
  // has value
}

but I can see how annoying it must be.
...and location is there for some reason I don't recall 🤷‍♂

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.