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JavaScript JavaScript Functions Arrow Functions Create an Arrow Function

Posted by Nas Jones
Nas Jones
7,849 Points

Challenge task help

I don't understand what's wrong what should i do to fix this?

script.js 
greet('cool coders');

const greet = (val) => {
  return `Hi, ${val}!`;
}

2 Answers

Cameron Childres
Cameron Childres
11,820 Points
Cameron Childres
Cameron Childres
11,820 Points

Hi Haki,

Your arrow function is looking good. Note that you call the function, and then you define it. Pay attention to the hint on this challenge:

HINT: Arrow functions are not hoisted – or lifted – to the top of their scope. Calling an arrow function before it's defined produces an error

Nas Jones
Nas Jones
7,849 Points

Thank you but i still don't understand how would i define it, I just started doing this not too long ago so i'm not that good at it. How would i define the function when i call it?

Cameron Childres
Cameron Childres
11,820 Points
Cameron Childres
Cameron Childres
11,820 Points

This is where you've called the function:

greet('cool coders');

This is where you've defined it:

const greet = (val) => {
  return `Hi, ${val}!`;
}

They're simply out of order. Move your call to the bottom, below the definition.

Nas Jones
Nas Jones
7,849 Points

I got it now thank you for the help!

John D
John D
7,237 Points
John D
John D
7,237 Points

You've already defined the function, the only difference is that you are using an arrow function which means that it must be defined before calling it:

you called 

greet('cool coders');

before your arrow function. Try switching them around! It should work.

Nas Jones
Nas Jones
7,849 Points

Thanks for the help!