Debugging issue challenge

JavaScript
#1

Tell us what’s happening:
Im getting a message saying that previous is not defined.

Your code so far


let myArray = [1, 2, 3];
let arraySum = myArray.reduce((previous, current => previous + current));
console.log(`Sum of array values is: ${arraySum}`);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/debugging/catch-unclosed-parentheses-brackets-braces-and-quotes

#2

Brackets need to go around the arguments to a function, for example, should be this:

(a, b) => a + b

Not this

(a, b => a + b)

which will do something different, as it assumes you’re writing a, then the comma operator, then a function (b) => a + b

#3

Thanks my man. It worked.

1 Like
#4

:man_facepalming: I’m really sorry about doing that to your post

#5

(Did I correctly get it back in its original state?)

#6

Yup, looks good! Phew, is there a post edit history that I just missed?

#7

If you click the orange pencil you can revert.

#8

Ahhh, yes, that would have saved embarrassment :upside_down_face:

#9

moreyouknow
moreyouknow1280×720 42.5 KB

1 Like
#10

No biggie my man. It worked out

1 Like
#11