ES6 - Use the Rest Parameter with Function Parameters

JavaScript
1

Tell us what’s happening:
I’m confused in the return line

(a,b)=> a + b, 0)
what is the use of adding 0 to this line??

Your code so far

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

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Challenge: ES6 - Use the Rest Parameter with Function Parameters

Link to the challenge:

2

The 0 is the initial value for the reduce method.

3

I’m unable to understand reduce method
can you please explain with an example??

4

The reduce method isn’t part of this Challenge.

It will be covered in this Challenge: