A) find the backslash key on your keyboard (most important) on many keyboards, the backslash \ is on a key close to enter/return and often shares the same key as the pipe symbol |. The backslash ( \ ) is a typographic keyboard mark which is used in many programming languages and other computing contexts. An actual backslash is produced by a double backslash \\.
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It is called a backslash because it is the reverse of the slash (/) or forward slash.
The backslash is used in several computer systems, and in many programming languages such as c and perl.
Learn what the backslash () symbol means, where to find it on keyboards, and how it’s used in windows, networking, programming, and regex. Keyboards, the backslash key is shared with the pipe key, which may be next to or above the backslash symbol. In this expression, the backslash symbol indicates the start of the pi command which renders the symbol π. Regular expression languages used it the same way, changing subsequent literal characters into metacharacters and vice versa.
