A method that indicates how many employees are currently working in the company.

Script
function employeeCount(employees) {
  // employeeCount is a function that takes in an array of people
  var count = 0;
  // Inside the function we'll set a variable called count to 0
  for (var i = 0; i < employees.length; i++) {
    // Then we'll loop through the array of employees
    if (employees[i].isEmployed) {
      // If the person at the current index of our loop is employed
      count++;
      // Add 1 to our count
    }
  }
  // Lastly, return the total number of employees we counted.
  return count;
}

employees = [
  {name: "Sam", isEmployed: true},
  {name: "Sasha", isEmployed: false},
  {name: "Derek", isEmployed: true},
  {name: "Terri", isEmployed: true},
  {name: "Michael", isEmployed: false}
];

employeeCount(employees); // 3