Ternary opeartor in javascript

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I am using jQuery and platform is Visual Code. And I'm a newbie in Mean Stack. I am using Ternary Operator to practice. I made a program, but it's not giving me the output as I want. I'm not certain about the problem. I want the user to enter the age and give me output as done by the ternary operator. When I run cmd, it runs the program and print 'What's is your age' and shows me ReferenceError: prompt is not defined.
Can anybody tell me where I am wrong?

What I have tried:

C#

var name = prompt('What is your age?');
console.log(name);
var age;
var voteable = (age < 18) ? "Too young":"Old enough";

Posted 29-May-16 0:29am

wardakhan

Updated 29-May-16 1:35am

v3

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Karthik_Mahalingam · Accepted Answer · 2016-05-29T01:12:00

Solution 1

try this

C#

var age = prompt('What is your age?');
       var voteable = (age < 18) ? "Too young" : "Old enough";
       alert(voteable);

you have not assigned the value from prompt to age variable.

Posted 29-May-16 1:12am

Karthik_Mahalingam

Updated 29-May-16 1:13am

v2

Comments

wardakhan 29-May-16 7:19am

I got an error on (age < 18):
[ts] Operator '<' cannot be applied to types 'string' and 'number'.
var age: string

Karthik_Mahalingam 29-May-16 7:21am

try parsing.
javascipt or some other lang?

var age = prompt('What is your age?');
age = parseInt(age);
var voteable = (age < 18) ? "Too young" : "Old enough";
alert(voteable);

wardakhan 29-May-16 7:26am

Same error. Well, I'm learning Mean Stack.

Karthik_Mahalingam 29-May-16 7:33am

ok. I am not aware of Mean Stack.
the code which i have posted is for pure javascript.
you can just try that code in the console window of your web browser...
Could you please improve the question with the exact need and the Language/Tools/Framework you are working on it. so it will be easy for us to provide the solution .

wardakhan 29-May-16 7:36am

Yeah, I've updated.

Karthik_Mahalingam 29-May-16 7:37am

ok fine.
give a try for window.prompt() as
var age = window.prompt('What is your age?');
i am deleting this solution. since it is not related to Mean Stack

wardakhan 29-May-16 7:40am

no don't delete, it's fine!!! thanks a ton!!!

Karthik_Mahalingam 29-May-16 7:41am

ok fine.