index.ts

#! /usr/bin/env node
import inquirer from "inquirer"
console.log("Calculator Start");

const calc = await inquirer.prompt([
    {
        message : "Enter First Number to perform operation",
        type : "number",
        name : "firstNumber"
    },
    {
        message : "Enter Second Number to perform operation",
        type : "number",
        name : "secondNumber"
    },
    {
        message : "Select your operator",
        type : "list",
        name : "operator",
        choices : ["Addition","Subtraction","Division","Multiplication"]
    }
]
)
if (calc.operator==="Addition"){
    console.log(calc.firstNumber+calc.secondNumber)
}
else if (calc.operator==="Subtraction"){
    console.log(calc.firstNumber-calc.secondNumber)
}
else if (calc.operator==="Multiplication"){
    console.log(calc.firstNumber*calc.secondNumber)
}
else if (calc.operator==="Division"){
    console.log(calc.firstNumber/calc.secondNumber)
}
else {
    console.log("Invalid operator found!")
}
console.log("Calculator End")