Blaclash

Answer 1

A Backslash \ is a special character which can be used in strings to create escape sequences:
\n - new line
\t - tab
\r - carriage return char
\\ - outputs a single backslash
It is also used in regular expressions to escape special characters

Answer 2

Thx

Answer 3

el backslash tamvien sirve para meter comillas \' \"