How do you define a simple function in TypeScript?*You can choose more than one answer

Defining a simple function in TypeScript can be done in the following ways:

1. Function Declaration: This is the most common way to define a function in TypeScript. Here is an example:

function greet(name: string): string {
    return "Hello, " + name;
}

In this example, greet is the function name, name is the parameter with string as its type, and the function returns a string.

2. Function Expression: This is another way to define a function in TypeScript. Here is an example:

let greet = function(name: string): string {
    return "Hello, " + name;
};

In this example, a function is assigned to the variable greet. The function takes one parameter name of type string and returns a string.

3. Arrow Function: This is a more modern way to define a function in TypeScript. Here is an example:

let greet = (name: string): string => {
    return "Hello, " + name;
};

In this example, an arrow function is assigned to the variable greet. The function takes one parameter name of type string and returns a string.

Remember, TypeScript is a statically typed superset of JavaScript, so it adds static types to the functions, which helps in better code structuring and error checking.