Why does JavaScript object constructer prints only the first parameter value

Question

var employee = ["Sam", "John", "Mark", "Peter", "Simon"]

var department = ["Sales", "Marketting", "Operation", "Finance", "Tech"]

var salary  = [40000, 60000, 50000, 60000, 70000]
const data=new Object(department,employee,salary);

console.log(data);

Why only print departments value?

Answer 1

var employee = ["Sam", "John", "Mark", "Peter", "Simon"]

var department = ["Sales", "Marketting", "Operation", "Finance", "Tech"]

var salary = [40000, 60000, 50000, 60000, 70000] 

const data={department,employee,salary};
console.log(data)

Answer 2

Enclose the values by curly braces

const data = {department, employee, salary};