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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects The Build an Object Challenge, Part 2 Solution

Posted by Leyton Parker
Leyton Parker
6,556 Points

Objects not printing to the page?

My code is exactly the same as the video (besides the property values which doesn't matter anyway) but I can't get the objects to print to the page. The JS console doesn't show any errors.

Please help :)

Leyton Parker
Leyton Parker
6,556 Points

students.js

var students = [
  {
    name: 'Ron', 
    track: 'quidditch', 
    achievments: 1, 
    points: 40
  },
  {
    name: 'Harry', 
    track: 'potions', 
    achievments: 1, 
    points: 60
  },
  {
    name: 'Hermione', 
    track: 'history', 
    achievments: 1, 
    points: 50
  },
  {
    name: 'Luna', 
    track: 'divinations', 
    achievments: 1, 
    points: 20
  },
  {
    name: 'Draco', 
    track: 'darkarts', 
    achievments: 2, 
    points: 20
  }
];

student_report.js

var message = '';
var student;

function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;
}

for (i = 0; i < students.length; i += 1) {
  student = students[i];
  message += '<h2>Name: ' + student.name + '</h2>';
}
print(message);

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Students</title>
  <link rel="stylesheet" href="css/styles.css">
</head>
<body>
<h1>Students</h1>
<div id='output'>

</div>
<script src="js/students.js"></script>
<script src="js/student_report.js"></script>
</body>
</html>

1 Answer

Cory Madden
Cory Madden
7,120 Points
Cory Madden
Cory Madden
7,120 Points

Hey, Leyton. I went ahead and tried out your code and it seems to work as intended in my workspace. Does your workspace look like this one https://teamtreehouse.com/workspaces/10016432 ?

Leyton Parker
Leyton Parker
6,556 Points

I can't view the link, I think it's linked to your account only.

Cory Madden
Cory Madden
7,120 Points

Sorry about that, didn't know that. You should be able to view this one https://w.trhou.se/ha39z0w6be

Leyton Parker
Leyton Parker
6,556 Points

Hey, so I went to the next video in the course and previewed the page using all of the code provided by the new workspace and still the site was blank. I think I'm having problems on my end ...

Leyton Parker
Leyton Parker
6,556 Points

Hey Cory,

So I think I have something weird with my workspaces where when I declared i as a variable it worked

for (var i = 0; i ...
Cory Madden
Cory Madden
7,120 Points

I didn't catch that. It worked because it just created a global variable named i that it worked with. You shouldn't do that, and should declare it with "var".

Leyton Parker
Leyton Parker
6,556 Points

well, somehow that fixed the problem, and it printed to the page.