What is the output?

const nums = [2, 3, 4];
const product = nums.reduce((acc, n) => acc * n, 1);
console.log(product);

Given:

const cat = {name: "Mittens", age: 5};

Context:

const arr = [1, 2, 3];
const total = arr.reduce((sum, num) => sum + num, 0);
console.log(total);

What is the output?

How can you modify this function to correctly capitalize only the first letter of a string?

function capitalize(str) {
    return str.toUpperCase();
}

What is the correct way to write a function that multiplies two numbers?

Given:

const arr = [1,2,3,4];
const sum = arr.reduce((a,b) => a+b, 0);