[Solved] Given this GraphQL type:type Profile { id: ID! username: String! emails: [String!]! bio: String }Which statement correctly describes the emails field? | GraphQL

GraphQL - Schema Definition Language (SDL)

Given this GraphQL type:

type Profile {
  id: ID!
  username: String!
  emails: [String!]!
  bio: String
}

Which statement correctly describes the emails field?

A<code>emails</code> is a required list with nullable strings

B<code>emails</code> is an optional list with nullable strings

C<code>emails</code> is an optional list with required strings

D<code>emails</code> is a required list with required non-null strings

Step-by-Step Solution

Solution:

Step 1: Analyze emails: [String!]!
The ! after String means each string is non-null.
Step 2: The ! after the list means the list itself is required and non-null.
Final Answer:
emails is a required list with required non-null strings -> Option D
Quick Check:
Required list and elements = C [OK]

Quick Trick: ! inside list means elements required; outside means list required [OK]

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