Arguments Optional Trouble

JavaScript
1

Tell us what’s happening:

Your code so far


function addTogether() {
var args = Array.from(arguments);
return args.some(n => typeof n !== "number") ?
undefined:
args.length > 1 ?
args.reduce((acc, n) => acc += n, 0):
(n) => typeof n === "number" ?
n = args[0]:
undefined;
}

addTogether(2,3);

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:76.0) Gecko/20100101 Firefox/76.0.

Challenge: Arguments Optional

Link to the challenge:

I have five out of six correct in my code, but I can’t figure out what is wrong with the last.

2

What does the failing test say?

3

It says addTogether (5) (7) should return 12

4

Between three nested ternaries and the use of array methods this is really unpleasant to try to read (not to mention unnecessarily complicated).

If I parsed that correctly without taking the time to rewrite it more legibly, the case of
addTogether(5) (and by extension addTogether(5)(7)) would get you to this return value:

n = args[0]:

You are attempting to return an assignment.

5

I’m so confused that i am going to start over.

6

I really suggest doing this in a more straightforward way. Don’t try to make it as short as possible with ternaries. Coding isn’t golf.

7

Always remember - make clear code that works first. You can improve the code once it works.

2 Likes
8

I have completed that challenge. :+1:

2 Likes
9

Congratulations! I’m glad you figured it out!

1 Like
10

Thank you very much! I love freecodecamp so much and everyone that is a part of it!

4 Likes