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JavaScript AJAX Basics (retiring) Programming AJAX Parsing JSON Data

Posted by Wendell Pulsipher
Wendell Pulsipher
10,183 Points

Uncaught SyntaxError: Unexpected token / ... widget.js line 5

here is my code... why am I getting this error

var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
    if(xhr.readyState === 4){
        if(xhr.status === 200){
            var info = JSON.parse(xhr.responseText);
        }
    }
}
xhr.open('GET', 'info.json');
xhr.send();

4 Answers

Dave McFarland
STAFF
Dave McFarland
Treehouse Teacher
Dave McFarland
Dave McFarland
Treehouse Teacher

Wendell Pulsipher

Sounds like the info.json file isn't a valid JSON file. Have you tried checking the info.json file in jsonlint,com to see if it validates?

Wendell Pulsipher
Wendell Pulsipher
10,183 Points
Wendell Pulsipher
Wendell Pulsipher
10,183 Points

Dave McFarland I have to wonder... could it be a browser issue?

Wendell Pulsipher
Wendell Pulsipher
10,183 Points
Wendell Pulsipher
Wendell Pulsipher
10,183 Points

I really need help with this right away please.. i have a project to get done

Wendell Pulsipher
Wendell Pulsipher
10,183 Points
Wendell Pulsipher
Wendell Pulsipher
10,183 Points

I pasted it into the validator but it ran an error because of the comment in the info.json file, so I took out the comment and now it works fine. Thank you.