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What is the main purpose of using query variables in GraphQL?

easy📝 Conceptual Q11 of 15
GraphQL - Queries
What is the main purpose of using query variables in GraphQL?
ATo create new types in the GraphQL schema
BTo define the schema of the GraphQL server
CTo store query results on the client side
DTo reuse the same query with different input values
Step-by-Step Solution
Solution:

  1. Step 1: Understand what query variables do

    Query variables allow you to write a query once and provide different inputs each time you run it.

  2. Step 2: Compare options with this purpose

    Only To reuse the same query with different input values describes reusing queries with different inputs, which matches the purpose of query variables.

  3. Final Answer:

    To reuse the same query with different input values -> Option D

  4. Quick Check:

    Query variables = reuse queries with different inputs [OK]
Quick Trick: Variables let you change inputs without rewriting queries [OK]
Common Mistakes:
  • Confusing variables with schema definitions
  • Thinking variables store data permanently
  • Mixing variables with client-side caching

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