Basic JavaScript - Concatenating Strings with the Plus Equals Operator

I have been trying to understand what I’m doing wrong even after watching the video, and copy pasting one of the other forum solutions.

Your code so far

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

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Challenge: Basic JavaScript - Concatenating Strings with the Plus Equals Operator

Link to the challenge:

You copied somebody else’s wrong answer. I recommend against copying answers.

That ; should not be there.

I tried multiple different answers and ways before trying to do any of that for the record

you are missing an assignment operator