Rest Parameter question

JavaScript
1

I have fulfilled on condition with regards to this question, but why do I fail the condition for using the rest parameter?


const sum = (...num) => {
const args = num;
return args.reduce((a, b) => a + b, 0);
}

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Challenge: Use the Rest Parameter with Function Parameters

Link to the challenge:

2

That last condition require you to use args as the name of the parameter :slight_smile:

const sum = (...args) => { 
  ...
}
2 Likes
3

HAHAHAH this was so unexpected, thanks man. I wish they’d be more clear about it but it makes for a fun problem solving exercise.

4

HAHAH I can’t believe that was it. But it’s weird because they declared a const variable with args already, meaning that if I used args in the parameter there would be an error.

5

well, you need to delete that line.

2 Likes
6 
const sum = (x, y, z) => {
  const args = [x, y, z];
  return args.reduce((a, b) => a + b, 0);
}

The point is that you have to refactor this function, so that instead of creating the const args you use it as function parameter :slight_smile:

1 Like
7

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