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JavaScript

Anthony Scott
PLUS
Anthony Scott
Courses Plus Student 9,001 Points

No error, but no output

When I run this js the dialog box appears and I get no error in js console, but I get no output on the web page.

var students = [ 
  { 
   name: 'Dave',
    track: 'Front End Development',
    achievements: 158,
    points: 14730
  },
  {
    name: 'Jody',
    track: 'iOS Development with Swift',
    achievements: '175',
    points: '16375'
  },
  {
    name: 'Jordan',
    track: 'PHP Development',
    achievements: '55',
    points: '2025'
  },
  {
    name: 'John',
    track: 'Learn WordPress',
    achievements: '40',
    points: '1950'
  },
  {
    name: 'Trish',
    track: 'Rails Development',
    achievements: '5',
    points: '350'
  }
];

var search;
var message = " ";
var student;

function print(message) {
    document.write(message);
}

function getStudentReport( student ) {
    var report = "<p><h1>Student: " + student.name + "</h1></p>";
    report += "<p>Track: " + student.track + "</p>";
    report += "<p>Achievments: " + student.achievements + "</p>";
    report += "<p>Points: " + student.points + "</p>";
    return report;
}

while (true) {
    search = prompt("Enter a student name. Type quit to exit.");
    search = search.toLowerCase();
    if (search === "quit" || search === null) {
        break;
    } 

        for (var i = 0; i < students.length; i += 1) {
            student = students[i];
            if ( student.name === search) {
                message = getStudentReport( student );
                print(message);
            }            
    }       
}

1 Answer

Steven Parker
Steven Parker
230,230 Points

Your name comparison has a case mismatch.

You convert your search term to lower case, but the names you are comparing it to all begin with an upper-case letter. So it is not possible for your search to ever find and print a record.

Converting the input case is a good idea, you just need to also convert each name you compare it to.