Help me out to spot the error

Tell us what’s happening:

Your code so far

var myStr="
ThirdLine"; // Change this line

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36 OPR/74.0.3911.107.

Challenge: Escape Sequences in Strings

Link to the challenge:

When you use single/double quotes to define a string you can’t have actual line breaks in it, so your string has to be all in one contiguous line. You add line breaks using the special escaped character fore newline given in the instructions.