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What will be the result of this resolver when querying userAge?

medium📝 query result Q5 of 15
GraphQL - Resolvers
What will be the result of this resolver when querying userAge?
const resolvers = {
  Query: {
    userAge: () => 30
  }
};
A"30"
B30
Cnull
DError: userAge not defined
Step-by-Step Solution
Solution:
  1. Step 1: Check resolver return value

    The resolver returns the number 30 directly.
  2. Step 2: Determine query output

    Querying userAge returns the number 30 as is.
  3. Final Answer:

    30 -> Option B
  4. Quick Check:

    Number return value = A [OK]
Quick Trick: Resolvers return exact data type as output [OK]
Common Mistakes:
  • Assuming string instead of number
  • Expecting null without resolver
  • Confusing error with missing schema

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