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JavaScript JavaScript Foundations Functions Return Values

Monika Spielman
Monika Spielman
14,443 Points
Posted by Monika Spielman
Monika Spielman
14,443 Points

Why still undefined?

I believe my code matches the video where the return name.length was added (3:25), but my Chrome Console still returns undefined (after greeting, value of 3, greeting, value of 3). My code:

function sayHello (name, greeting) {
    if (typeof greeting === 'undefined'){
        greeting = "Hello";
    }
    console.log(greeting + " World! " + name);
    return name.length;
}
console.log(sayHello("Jim", "Greetings"));

console.log(sayHello("Jim"));
thisandthat
thisandthat
3,220 Points

What is the expected result?

2 Answers

akc
akc
11,729 Points
akc
akc
11,729 Points

The code Jim has in the video is written in the .js file - they are not typed directly to the JavaScript Console.

When you type and call the console.log function directly in the JavaScript Console, it will return undefined at the end of the the prompt.

Rebecca Bompiani
Rebecca Bompiani
16,996 Points
Rebecca Bompiani
Rebecca Bompiani
16,996 Points

Hi Monika-

I think it may be a problem with your "===" comparison. Try switching it to "==" :

if (typeof greeting == 'undefined'){
        greeting = "Hello";
    }
Monika Spielman
Monika Spielman
14,443 Points
Monika Spielman
Monika Spielman
14,443 Points

Thanks for the replies. I expected my result to match the Instructor's. Notice he has no "undefined" result and I do, whether I have (2) == or (3) ===.

Instructor's Code alt text

Instructor's Result alt text

My Code and My Result alt text