Challenge Concatenating Strings with Plus Operator has an issue.
User Agent is: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36.
Please describe how to reproduce this issue, and include links to screenshots if possible.

My code:

// Example
var ourStr = "I come first. " + "I come second.";

// Only change code below this line

var myStr;

myStr = "This is the start." + " This is the end.";

I don't think we could make it much clearer without doing it for you:

Note
Watch out for spaces. Concatenation does not add spaces between concatenated strings, so you'll need to add them yourself.

Thanks and happy coding!