What is wrong with this function?

function sayHello() {
    message = "Hello, World!";
    return message;
}
console.log(sayHello());

What is the correct fix for this function to return `2`?

function fixMe() {
    const a = 1;
    const b = 1;
    let result;
    result = "a" + "b"; // Fix this line
    return result;
}

What will be logged to the console?

const a = 5;
let b = 7 * a;
console.log(b);

What will be logged?

const arr = [2,3];
const result = arr.reduce((acc, curr) => acc * curr, 5);
console.log(result);

What is the result?

const str = "abcdef";
console.log(str.slice(1, 4));

What will this code do?

btn.addEventListener('click', function(e) {
  console.log(e.target.id);
});

Is it possible to attach multiple click listeners to the same element?

Context:

const user = { name: "Ali", age: 25 };
let key = "age";

How can you access the age value dynamically?

Context:

What is the output?

const nums = [10, 20, 30];
console.log(nums.map(x => x / 10));