index.ts

#!usr/bin/env node
import inquirer from "inquirer";
import chalk from "chalk";
import chalkanimation from "chalk-animation"

const sleep = ()=>{
    return new Promise((res)=>{
        setTimeout(res,2000)
    })
}

async function welcome() {
    let rainbowTittle =  chalkanimation.rainbow('Lets Akhlaque Channa calculator !');// start
    await sleep();
    rainbowTittle.stop();
    console.log(` 
     _____________________
    |  _________________  |
    | | MAC          0. | |
    | |_________________| |
    |  ___ ___ ___   ___  |
    | | 7 | 8 | 9 | | + | |
    | |___|___|___| |___| |
    | | 4 | 5 | 6 | | - | |
    | |___|___|___| |___| |
    | | 1 | 2 | 3 | | x | |
    | |___|___|___| |___| |
    | | . | 0 | = | | / | |
    | |___|___|___| |___| |
    |_____________________|
`); 
}
await welcome();

async function askQuestion() {
    await inquirer
    .prompt([
    /* Pass your questions in here */
    {
        type: "list",
        name: "operator",
        message: "Which operator you want to perform ? \n",
        choices:["Addition","Subtraction","Multiplication","Division","Power"]
    },
    {
        type:"number",
        name:"num1",
        message: "Enter your first number!"
    },
    {
        type:"number",
        name:"num2",
        message: "Enter your Second number!"
    },
  ])
  .then((answers) => {
    // Use user feedback for... whatever!!
    // console.log(answers);
    if(answers.operator == "Addition"){
       console.log(chalk.green(`${answers.num1} + ${answers.num2} = ${answers.num1+answers.num2}`));    
    }
    else if(answers.operator == "Subtraction"){
        console.log(chalk.grey(`${answers.num1} - ${answers.num2} = ${answers.num1-answers.num2}`));
    }
    else if(answers.operator == "Subtraction"){
        console.log(chalk.blue(`${answers.num1} * ${answers.num2} = ${answers.num1*answers.num2}`));
    }
    else if(answers.operator == "Division"){
        console.log(chalk.red(`${answers.num1} / ${answers.num2} = ${answers.num1/answers.num2}`));
    }
    else if(answers.operator == "Power"){
        console.log(chalk.bgCyan(`${answers.num1} ^ ${answers.num2} = ${Math.pow(answers.num1,answers.num2)}`));
    }
  })
};
// askQuestion();

async function StartAgain() {
    do{
        await askQuestion();
        var again = await inquirer
        .prompt({
            type: "input",
            name: "restart",
            message: "do you want to continue? press y or n:"

        })
    }while(again.restart == 'y' || again.restart == 'Y' || again.restart == 'yes' || again.restart == 'YES')
    
}
StartAgain();