[Solved] You have this schema:type Query { users: [User!]! }What does the type of 'users' field mean? — Ans: Returns a non-null list of non-null User objects | GraphQL

GraphQL - Basics and Philosophy

You have this schema:

type Query { users: [User!]! }

What does the type of 'users' field mean?

AReturns a nullable list of nullable User objects

BReturns a non-null list of nullable User objects

CReturns a list that can be null but contains non-null Users

DReturns a non-null list of non-null User objects

Step-by-Step Solution

Solution:

Step 1: Break down the type syntax
[User!]! means a list that cannot be null (!) containing User objects that cannot be null (!).
Step 2: Interpret nullability
The outer ! means list itself is non-null, inner ! means each User is non-null.
Final Answer:
Returns a non-null list of non-null User objects -> Option D
Quick Check:
List! of User! = non-null list of non-null items [OK]

Quick Trick: Outer ! = list non-null, inner ! = items non-null [OK]

Common Mistakes:

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