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TypeScript Interview Questions and Answers

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JavaScript vs TypeScript

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Ques 6. What is the 'any' type in TypeScript?

The 'any' type in TypeScript is used to represent a dynamic type that can hold values of any type, and it bypasses type checking.

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Ques 7. How do you declare an array in TypeScript?

Arrays in TypeScript can be declared using the syntax 'let myArray: number[] = [1, 2, 3];' or 'let myArray: Array = [1, 2, 3];'.

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Ques 8. Explain the 'this' keyword in TypeScript.

The 'this' keyword in TypeScript is used to refer to the current instance of the object within a class or function.

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Ques 9. What is a module in TypeScript?

A module in TypeScript is a way to organize code into separate files, and it can include interfaces, classes, functions, and variables.

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Ques 10. What is the use of 'namespace' in TypeScript?

The 'namespace' keyword in TypeScript is used to group related code into a named scope, preventing naming conflicts with other parts of the program.

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