\n, quotes (e.g.
< and you want to send it without confusing the browser then you need to send it as &lt; instead of
< . Simlarly there are many other special characters that can be used as part of
|single quote (')
|\u000B or \v
That is easy. Just type the character or a full string in the text box above and hit Escape button. You should be able to see the escaped value.
\0 escapes are considered illegal in JSON and are not allowed strings.
v instead of a vertical tab