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Questions and Answers
What is the purpose of using mapped types in TypeScript?
What is the purpose of using mapped types in TypeScript?
- To delete existing types and replace them with new ones
- To restrict the number of properties in a type
- To create new types based on existing types with transformed properties (correct)
- To confuse developers by introducing unnecessary complexity
In the given code snippet, what data type is associated with each field of the FormFields object?
In the given code snippet, what data type is associated with each field of the FormFields object?
- object
- number
- string | null (correct)
- boolean
How does changing the FormFields type affect the FormErrors type in the provided code?
How does changing the FormFields type affect the FormErrors type in the provided code?
- FormErrors will throw an error
- FormErrors will be deleted
- FormErrors will be automatically updated to reflect the changes (correct)
- FormErrors will remain unaffected by changes in FormFields
What happens to the FormErrors object if a new field is added to FormFields?
What happens to the FormErrors object if a new field is added to FormFields?
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Which of the following best describes the relationship between FormFields and FormErrors?
Which of the following best describes the relationship between FormFields and FormErrors?
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