index.ts

#! /usr/bin/env node

import inquirer from 'inquirer';

const answer = await inquirer.prompt([
  { message: 'Enter your first number', type: 'number', name: 'firstNumber' },
  { message: 'Enter your second number', type: 'number', name: 'secondNumber' },
  {
    message: 'Select one of the operator to perform action',
    type: 'list',
    name: 'operator',
    choices: ['Addition', 'Subtraction', 'Multiplication', 'Division'],
  },
]);

if (answer.operator === 'Addition') {
  console.log(answer.firstNumber + answer.secondNumber);
} else if (answer.operator === 'Subtraction') {
  console.log(answer.firstNumber - answer.secondNumber);
} else if (answer.operator === 'Multiplication') {
  console.log(answer.firstNumber * answer.secondNumber);
} else if (answer.operator === 'Division') {
  console.log(answer.firstNumber / answer.secondNumber);
} else {
  console.log('Please select a valid operator');
}

console.log('THE END');