Program to print hello world in typescript

console.log("Hello, World!");

Program to add two numbers
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Program:


function addNumbers(a: number, b: number): number {
return a + b;
}

const num1: number = 5;
const num2: number = 7;

const sum: number = addNumbers(num1, num2);

console.log(The sum of ${num1} and ${num2} is ${sum});

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#basicprograms

Program to add two numbers by accepting input from the user:
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Program:

using System;

namespace AddTwoNumbers
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Enter the first number: ");
int num1 = int.Parse(Console.ReadLine());

Console.WriteLine("Enter the second number: ");
int num2 = int.Parse(Console.ReadLine());

int sum = num1 + num2;

Console.WriteLine("The sum of {0} and {1} is {2}.", num1, num2, sum);
}
}
}

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#basicprograms

here's an example of a TypeScript program that calculates the factorial of a given number:

function factorial(num: number): number {
if (num === 0) {
return 1;
} else {
return num * factorial(num - 1);
}
}

const number = 5 // replace with the number you want to find the factorial of
const result = factorial(number);

console.log(The factorial of ${number} is ${result});