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

Andrei Punei
Andrei Punei
14,051 Points
Posted by Andrei Punei
Andrei Punei
14,051 Points

Cannot access the proprieties in the objects!

///JavaScript Language

var students = [ {name: 'Marcel', track: 'Front-End development', achievements: 4, points: 2000, languages: ['Html', 'CSS3', 'JavaScript']}, {name: 'Iohanis', track: 'Back-End development', achievements: 8, points: 2750, languages: ['Html', 'JavaScript', 'PhP']}, {name: 'Popescu', track: 'PhP development', achievements: 5, points: 1400, languages: ['Html', 'JavaScript', 'PhP', 'SqL']}, {name: 'Simona', track: 'JavaScript development', achievements: 6, points: 1860, languages: ['Html', 'JavaScript', 'Node Js']}, {name: 'Marian', track: ' Web design', achievements: 7, points: 3000, languages: ['Html', 'CSS3']} ];

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

var message = ''; var student;

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

///The console spits out an error saying that property 'name' is undefined

2 Answers

Tobias Helmrich
Tobias Helmrich
31,602 Points
Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey Andrei,

firstly I'd like to recommend that you should post your code in a more legible way (e.g. indentation, line breaks) so it's easier for people who'd like to help you to understand your code.

I think the problem you're having exists because your for loop is missing its instructions. It looks like you forgot to finish your for loop.

After changing your code to this it should work:

var students = [ 

    {
        name: 'Marcel', 
        track: 'Front-End development', 
        achievements: 4, 
        points: 2000, 
        languages: ['Html', 'CSS3', 'JavaScript']
    },
    {
        name: 'Iohanis', 
        track: 'Back-End development', 
        achievements: 8, 
        points: 2750, 
        languages: ['Html', 'JavaScript', 'PhP']
    },
    {
        name: 'Popescu', 
        track: 'PhP development', 
        achievements: 5, 
        points: 1400, 
        languages: ['Html', 'JavaScript', 'PhP', 'SqL']
    },
    {
        name: 'Simona', 
        track: 'JavaScript development', 
        achievements: 6, 
        points: 1860, 
        languages: ['Html', 'JavaScript', 'Node Js']},
    {
        name: 'Marian', 
        track: ' Web design', 
        achievements: 7, 
        points: 3000, 
        languages: ['Html', 'CSS3']
    }

];



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

var message = ''; 
var student;

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

print(message);
Andrei Punei
Andrei Punei
14,051 Points
Andrei Punei
Andrei Punei
14,051 Points

Cheers Toby! you're one cool guy

Tobias Helmrich
Tobias Helmrich
31,602 Points
Tobias Helmrich
Tobias Helmrich
31,602 Points

Haha, thank you! I'm glad I could help!