Escape-sequences in Strings

Tell us what’s happening:
Why “carriage return” is used here in place of “newline” . When “ThirdLine” text is in the third line , then we have to used the newline character . Then we have used carriage return here?

Your code so far

var myStr = 'FirstLine\n\\SecondLine\\\rThirdLine';


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Link to the challenge:
https://www.freecodecamp.org/challenges/escape-sequences-in-strings