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Start your free trialNour El-din El-helw
8,241 Points'Undefined'
I always get 'undefined' printed whenever i run the program. Here is my code :
var students = [
{
name : 'Nour El-din',
track : 'Front-end web development',
achievements : 5,
points : 3000
},
{
name : 'Mariam',
track : 'IOS',
achievements : 6,
points : 1000
},
{
name : 'Hala',
track : 'Android',
achievements : 8,
points : 300
},
{
name : 'Heba',
track : 'Web Design',
achievements : 10,
points : 30000
},
{
name : 'Ahmed',
track : 'C#',
achievements : 15,
points : 5000
}
];
var messege;
function print(message) {
var outputDiv = document.getElementById('output');
outputDiv.innerHTML += message;
}
for (var i = 0; i < students.length; i++) {
for (var key in students[i]) {
if ( students[i][key] === students[i].name ) {
messege += '<h2>' + key + ' : ';
messege += students[i][key] + '</h2><br>';
} else {
messege += key + ' : ';
messege += students[i][key] + '<br><br>'
}
}
}
print(messege);
Brian Johnson
Front End Web Development Techdegree Graduate 20,818 PointsHey check your variable name. I think you misspelled "message". your code is saying messege in two places
1) var messege 2) print(messege);
other than that I think you're golden.
Nour El-din El-helw
8,241 PointsThanks a lot!
1 Answer
Steven Parker
231,072 PointsThe spelling of "messege" is not an issue because it is used consistently in the program.
The reason "undefined" appears in the output is because the variable is appended ("+=") before it is assigned. This can be fixed by just initializing it as a blank string:
var messege = "";
Nour El-din El-helw
8,241 PointsYeah, I figured that out.Thanks!
Nour El-din El-helw
8,241 PointsNour El-din El-helw
8,241 PointsSorry if I didn't provide a snapshot of the workspace as I'm working in my editor.