Questions
5 of 10
1What is GraphQL schema?
2What are root operation types?
3What are scalar types?
4What are Enum types?
5What are Type modifiers?
6What are object types?
7What are input types?
8Describe interface type.
9Discuss Union types.
10What is an exclamation point in GraphQL?
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Schema
Queries
Mutations
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Resolver
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Pagination
Error Handling
Scalars
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Batching and Caching
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05 / 10

What are Type modifiers?

when we use named types in a schema (or in query variable declarations) you can apply additional type modifiers that will affect the meaning of those values.

This allows you to:
  1. 1

    Non-Null: by adding an exclamation mark (!) after the type name.

  2. 2

    List: by wrapping the type in square brackets, [ and ].

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