TypeScript perguntas e respostas de entrevista
Diferencas relacionadas
Pergunta 31. What is the purpose of the 'export' keyword in TypeScript?
The 'export' keyword in TypeScript is used to make functions, variables, or classes available for use in other files by importing them.
Pergunta 32. Explain the concept of ambient declarations in TypeScript.
Ambient declarations in TypeScript are used to tell the compiler about the existence of external entities, such as libraries or globals, that are not defined in the current TypeScript file.
Pergunta 33. What is the 'never' type and where is it commonly used?
The 'never' type in TypeScript is used to represent values that never occur. It is commonly used in functions that always throw exceptions or never return.
Pergunta 34. How do you create an instance of an interface in TypeScript?
Interfaces in TypeScript are not directly instantiated. Instead, you can create an object literal that conforms to the shape of the interface.
Pergunta 35. What is the 'this' type in TypeScript?
The 'this' type in TypeScript is used to represent the type of the instance of a class or object within a method.
Mais uteis segundo os usuarios:
- What is TypeScript?
- Explain the difference between 'let' and 'const' in TypeScript.
- What are the basic data types in TypeScript?
- How do you define an interface in TypeScript?
- What is the 'any' type in TypeScript?