When i type alphabet in Monthly salary prompt input ,I want that an error should display. What should I have to do?

Question

https://code.sololearn.com/W3DxUvQfP2hN/?ref=app

Answer 1

You need to check the value received from the prompt is number or not .you can use isNan which returns true for alphatbets

Answer 2

Bro please give an example 😅

Answer 3

x = prompt ('enter your salary');
x = x*1;
if (isNaN(x)) {
console.log('this is letters');
}

else {
console.log ('this is numbers!');
}

Answer 4

Thanks Bro 😊😄 ,