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TypeScript Online Test

Topics Covered

  • TypeScript Types
  • Complex Variables
  • Classes and Methods
  • Inheritance
  • Mixins
  • Modules
  • Registration Web APIs
  • TypeScript Purpose

Useful for hiring

  • Software Engineer – TypeScript
  • TypeScript Programmer
  • TypeScript Developer
  •  Junior .Net Developer - TypeScript

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Question

Which statements are true regarding JSX modes?

Note: There can be multiple correct answers to this question.

Answer
    • These modes only affect the emit stage - type checking is unaffected.

    • The output of react mode will have a .jsx file extension.

    • The react mode will emit React.addElement.

    • The preserve mode will keep the JSX as part of the output to be further consumed by another transform step.

Question

What is the result of using /// ?

Answer
    • This directive instructs the compiler place the default library on the file system.

    • This directive instructs the compiler to delete the default library in the compilation.

    • This directive instructs the compiler to not include the default library in the compilation.

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