I just faced this question in interview. Is it possible to escape character within single quotes in ruby?
我刚刚在面试中遇到了这个问题。是否有可能在ruby中用单引号转义字符？
The confusion is in following code
混淆在以下代码中
puts '\\' # Output: \
puts '\n' # Output: \n
It seems that backword slash is escaped but the newline character isn't.
看起来后缀斜杠是转义的，但换行符不是。
I am aware of this question but I am not asking about difference between single and double quote. I am asking about whether it's possible to escape characters in single quotes or not? And why only backslash is allowed to escape?
我知道这个问题，但我不是在询问单引号和双引号之间的区别。我在询问是否可以用单引号转义字符？为什么只允许反斜杠逃脱？
1 个解决方案
#1
3
The only characters that needs to be escaped in a single quoted string are '\\' (for backslash \) and '\'' (for single quote ' itself).
需要在单引号字符串中转义的唯一字符是'\\'（对于反斜杠\）和'\''（对于单引号'本身）。
#1
3
The only characters that needs to be escaped in a single quoted string are '\\' (for backslash \) and '\'' (for single quote ' itself).
需要在单引号字符串中转义的唯一字符是'\\'（对于反斜杠\）和'\''（对于单引号'本身）。