TypeScript Functions

Understand how the functions of TypeScript work and how to use asynchronous functions.

The functions in TypeScript and JavaScript are alike. The only difference is that in TypeScript, we must specify the data type of the return type and the arguments of the function.


In JavaScript, functions are first-class citizens, which means they can be used as values of other types. They can be described as procedures but differ in the sense that they receive input and give an output. We define a function in JavaScript using the function keyword.

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