TypeScript - JavaScript's Superset โ€บ Static vs Dynamic Type Checking โ€บ Question #19071
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QType Annotations allow us to _______.

ID: #19071 Static vs Dynamic Type Checking 124 views
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#19071Q ID
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Static vs Dynamic Type CheckingTopic
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  • A Cast a reference of a base class to one of its derived classes โœ” โœ–
  • B Reassign the type of data โœ” โœ–
  • C Cast to a supertype โœ” โœ–
  • D Record the intended contract of the function or variable โœ” โœ–
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Explanation

Type Annotations allow us to record the intended contract of the function or variable.

Type annotations in programming languages, including TypeScript, are used to specify the intended data type of a variable, the return type of a function, or the types of function parameters. They provide a way for developers to explicitly state the expected types, making the code more self-documenting and allowing tools like compilers or IDEs to perform static type checking.

While type annotations help ensure that the code adheres to the specified types, they don't directly perform casting or reassign the type of data. They serve as a form of documentation and a tool for static type checking during development.

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