Cannot get the flag/presence of a property

[cyonder]

Support plan

• is this issue currently blocking your project? (yes/no): yes
• is this issue affecting a production system? (yes/no): no

Context

• node version: v16.14.0
• module version with issue: v17.9.2
• last module version without issue: N/A
• environment (e.g. node, browser, native): browser
• used with (e.g. hapi application, another framework, standalone, ...): react-hook-form resolver for joi
• any other relevant information: N/A

What are you trying to achieve or the steps to reproduce?

I'm trying to get the presence of a field. So, trying to learn if presence is optional or required. In order to get that I'm using $_getFlag but it doesn't work.

What was the result you got?

Works:

console.log('1. firstName', sampleFormSchema.extract('firstName')._flags.presence);

Works:

console.log('2. firstName', sampleFormSchema.$_terms.keys.find((key) => key.key === 'firstName')?.schema._flags.presence);

Doesn't Work:

console.log('3. firstName', sampleFormSchema.$_getFlag('firstName'));
console.log('3. firstName', sampleFormSchema.$_getFlag('firstName', 'presence'));

What result did you expect?

Expected to receive 'option' or 'required' but received undefined.