Conditional expressions in JavaScript | JavaScript Tutorial

 let a = prompt("Hey whats your age?")

a=Number.parseInt (a) //converting string into a number

console.log(typeof a)

if (a<0){

  alert ("this is invalid age")

}

else if(a<9)

{

  alert("You are a kid")

}

else if (a<18 && a>=9)

{

  alert(" you are a kid and you can think of driving after 18")

  

}

else{

  alert("you can now drive as you are above 18")

}

// Ternary Operator

console.log("You can",a<18?"not drive": "drive");

//homework-Explore switch statement and write a basic program.

let b= prompt("Enter the number of the week day:")

b=Number.parseInt(b)

switch(b){

  case 1:

    console.log("Today is Sunday");

    break;

  case 2:

    console.log("Today is Monday")

     break;

  case 3:

    console.log("Today is Tuesday")

     break;

  case 4:

    console.log("Today is Wednesday")

     break;

  case 5:

    console.log("Today is Thursday")

     break;

  case 6:

    console.log("Today is Friday")

     break;

  case 7:

    console.log("Today is Saturday")

     break;

  default :

  console.log(" The value is undefined")

}