I dont get it .... what

JavaScript
1

Tell us what’s happening:
what does this have to do with destructuring or commas?

Your code so far


let a = 8, b = 6;
// Only change code below this line
[ a, b] = [b, a];

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36.

Challenge: Use Destructuring Assignment to Assign Variables from Arrays

Link to the challenge:

2

I suggest you read the explanations again.

However, what you are doing here with destructuring is swapping out the variables.

If you do a = b; b = a; , you get a wrong result. So, destructuring is the way here.

You will find and example similar to the challenge Here