Interestesting... what's going on here?

Challenge Concatenating Strings with the Plus Equals Operator has an issue. User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36. Please describe how to reproduce this issue, and include links to screenshots if possible.

The preview box states, “referenceError”… like okay?

My code:

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

// Only change code below this line

var myStr = "This is the first sentence. ";
ourStr += "This is the second sentence.";

[ar94952]

You don’t need to change anything. I understand that some challenges need to be vague to encourage learner to do a little research. Part of problem-solving…

Thanks guys!

[texas2010]

but we could change variables name. so it will be less misunderstand?