// Function to create an employee record
function createEmployeeRecord(employeeData) {
    const [firstName, familyName, title, payPerHour] = employeeData;
    return {
      firstName,
      familyName,
      title,
      payPerHour,
      timeInEvents: [],
      timeOutEvents: []
    };
  }
 
  // Function to create employee records for multiple employees
  function createEmployeeRecords(employeesData) {
    return employeesData.map(createEmployeeRecord);
  }
 
  // Function to record an employee's clock-in time
  function createTimeInEvent(employee, timeStamp) {
    if (!employee.timeInEvents) employee.timeInEvents = []; // Check if timeInEvents array exists
    employee.timeInEvents.push({
      type: "TimeIn",
      hour: parseInt(timeStamp.slice(11, 13)),
      date: timeStamp.slice(0, 10)
    });
    return employee;
  }
 
  // Function to record an employee's clock-out time
  function createTimeOutEvent(employeeRecord, dateTime) {
    if (!dateTime) return employeeRecord; // Check if dateTime is provided
    const [date, hour] = dateTime.split(' ');
    employeeRecord.timeOutEvents.push({
      type: "TimeOut",
      hour: parseInt(hour, 10),
      date
    });
    return employeeRecord;
  }
 
  // Function to calculate hours worked by an employee on a specific date
  function hoursWorkedOnDate(employeeRecord, date) {
    const timeInEvent = employeeRecord.timeInEvents.find(event => event.date === date);
    const timeOutEvent = employeeRecord.timeOutEvents.find(event => event.date === date);
    return (timeOutEvent.hour - timeInEvent.hour) / 100;
  }
 
  // Function to calculate wages earned by an employee on a specific date
  function wagesEarnedOnDate(employeeRecord, date) {
    const hoursWorked = hoursWorkedOnDate(employeeRecord, date);
    return hoursWorked * employeeRecord.payPerHour;
  }
 
  // Function to calculate total wages earned by an employee for all dates
  function allWagesFor(employeeRecord) {
    return employeeRecord.timeInEvents.reduce((totalWages, event) => totalWages + wagesEarnedOnDate(employeeRecord, event.date), 0);
  }
 
  // Function to find an employee record by first name
  function findEmployeeByFirstName(employeesArray, firstName) {
    return employeesArray.find(employee => employee.firstName === firstName);
  }
 
  // Function to calculate total payroll for all employees
  function calculatePayroll(employeesArray) {
    return employeesArray.reduce((totalPayroll, employee) => totalPayroll + allWagesFor(employee), 0);
  }
 
 

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