What is the output of this code? + EXPLAINE

Question

var arr=[10,20,30,40,50];
var a, b, c;
[a, b, ...c]=arr;
Console.log(c[1])

Answer 1

Ofir Salem

Triple dot (...) Means spread operator and it contains rest elements so here

a = 10
b = 20

And rest elements will go with c because of ...c

So here c is [30, 40, 50]
Now c[1] is 40

Answer 2

[a, b,...c]=arr is destructuring of array where a is assigned value 10 ,b is assigned value 20 and c is assigned the array of values 30,40,50 by the help of rest syntax(...variable)

https://javascript.info/rest-parameters-spread