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Student Enrollment Records

This page describes the student enrollment records and documents usage.

Student Enrollment Records Layout

Field 1 Field 2 Field 3 Field 4 Field 5 Field 6
Student Number Student Name Address Zip Code Gender Course Number

Using the Student Enrollment Records

  • The records are made available to your programs with this function:
openStudentEnrollmentRecords();
  • The function returns the records so you need to store them in a variable:
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// using the open function
let studentRecords;
studentRecords = openStudentEnrollmentRecords();
  • After the openStudentEnrollmentRecords() function has been run you have access to the first record's data. You will retrieve each part of one record with a different function. Here are the functions:
studentRecords.getStudentNumber();
studentRecords.getStudentName();
studentRecords.getStudentAddress();
studentRecords.getStudentZipCode();
studentRecords.getStudentGender();
studentRecords.getStudentCourseNumber();
  • Notice that you need to have "studentRecords." in front of each of the functions.

  • When you want to read the next record you use the following function. It will make the next record available and you then use the above functions to retrieve the data. This function returns true if there was a next record and false if the end of the record set has been reached.

studentRecords.readNextRecord();

Example Usage

Here's an example of how the Student Enrollment Records are used.

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/*
  This is the JavaScript code for "Student Enrollment Records"
  File: /unit04/studentEnrollmentRecords.html
*/
function studentEnrollmentRecords() {
    "use strict";

    //Declare Variables
    let currentNumber;
    let currentName;
    let currentAddress;
    let currentZipCode;
    let currentGender;
    let currentCourseNumber;
    let studentRecords;

    // Open the Student Enrollment Records and make them
    // available to the script
    studentRecords = openStudentEnrollmentRecords();

    // Read the next record, test to see if there
    // is a next record and then output it
    while (studentRecords.readNextRecord()) {
        currentNumber = studentRecords.getStudentNumber();
        currentName = studentRecords.getStudentName();
        currentAddress = studentRecords.getStudentAddress();
        currentZipCode = studentRecords.getStudentZipCode();
        currentGender = studentRecords.getStudentGender();
        currentCourseNumber = studentRecords.getStudentCourseNumber();

        // Display the second record
        document.write(currentNumber + "\t" + currentName + "\t"
                + currentAddress + "\t" + currentZipCode + "\t"
                + currentGender + "\t" + currentCourseNumber + "<br />");
    }
}

Student Enrollment Record Data