Introduction to TypeScript

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What is TypeScript?

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TypeScript is a statically typed superset of JavaScript.

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How does TypeScript differ from JavaScript?

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TypeScript differs from JavaScript by providing static typing and additional features for better code quality.

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What is a type in TypeScript?

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A type in TypeScript defines the structure and behavior of data.

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What are interfaces in TypeScript?

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Interfaces in TypeScript are a way to define the shape of an object, including its properties and methods.

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What is a class in TypeScript?

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A class in TypeScript is a blueprint for creating objects that encapsulate data and behavior.

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How do you declare a variable in TypeScript? Options: const x = 5;, let x: string = '5';, let x: number = 5;, var x: number = 5;

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let x: number = 5;

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What is a function in TypeScript?

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A function in TypeScript is a reusable block of code that can take inputs and return outputs.

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What is the purpose of the 'any' type?

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The 'any' type allows a variable to hold values of any type, bypassing type checking.

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How do you create an array in TypeScript?

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let numbers: number[] = [1, 2, 3];

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What is a module in TypeScript?

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A module in TypeScript is a file that exports code to be used in other files.