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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Using Array Methods

Isaac Pfeif
Isaac Pfeif
11,437 Points
Posted by Isaac Pfeif
Isaac Pfeif
11,437 Points

There appears to be a problem with running object methods in the code challenge workspace.

In the current code challenge, (combine all the elements of an array into a list separated by commas and spaces and store it in a string). The solution (var list = months.join(", ");) is causing an error. I have run into this problem a few times before, but there was always a slight work-around, which is not present in this due to the requirements of the challenge.

script.js 
var months = ['January','February','March','April','May','June','July','August','September','October','November','December'];
var list = months.join(", ");
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

2 Answers

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Issac,

As per the challenge requirements, you need to join each array item into a comma and space separated string, you then need to log it to the console using console.log.

console.log(months.join(", "));

Happy coding!

Isaac Pfeif
Isaac Pfeif
11,437 Points
Isaac Pfeif
Isaac Pfeif
11,437 Points

Thanks. Although I did finish the code challenge. In a previous attempt, the solution that I used (although slightly less efficient than that) was also getting the error. I had run into some other object related problems in previous code challenges such as using .length() in a previous array code challenge or using .toLowerCase() in the comparing strings code challenge, but it appears to have been fixed, since this challenge which required .join() didn't get the error.