my_string = 'Here's the #: 49848! - but will dashes, commas & stars (*) show?'
puts src.gsub(/\d|\W/, "")
i.e. can I remove the or ("|").
即我可以删除或（“|”）。
Here's how I got here, can I get shorter?
这是我如何到达这里，我可以变短吗？
src = "Here's the #: 49848! - but will dashes, commas & stars (*) show?"
puts "A) - " + src
puts "B) - " + src.gsub(/\d\s?/, "")
puts "C) - " + src.gsub(/\W\s?/, "")
puts "D) - " + src.gsub(/\d|\W\s?/, "")
puts "E) - " + src.gsub(/\d|\W/, "")
puts "F) - " + src
A) - Here's the #: 49848! - but will dashes, commas & stars (*) show?
B) - Here's the #: ! - but will dashes, commas & stars (*) show?
C) - Heresthe49848butwilldashescommasstarsshow
D) - Heresthebutwilldashescommasstarsshow
E) - Heresthebutwilldashescommasstarsshow
F) - Here's the #: 49848! - but will dashes, commas & stars (*) show?
n.d. D) and E) are what I want for output. Just characters.
日期不详D）和E）是我想要输出的东西。只是人物。
3 个解决方案
#1
15
my_string = "Here's the #: 49848! - but will dashes, commas & stars (*) show?"
p my_string.delete('^a-zA-Z')
#=>"Heresthebutwilldashescommasstarsshow"
#2
4
I have this one
我有这个
src.gsub(/[^a-z]/i, "")
also not shorter, but better to read in my opinion.
也不短，但在我看来更好阅读。
The i modifier makes the regex case independent, so that a-z matches also A-Z. A small difference is that this regex will also replace _ which is not replaced by yours.
i修饰符使正则表达式独立，因此a-z也匹配A-Z。一个小的区别是这个正则表达式也将取代_而不是由你的。
#3
2
If you want to keep also unicode letters, use this one:
如果你想保留unicode字母，请使用以下字母：
/\PL/
This matches all non letter character.
这匹配所有非字母字符。
#1
15
my_string = "Here's the #: 49848! - but will dashes, commas & stars (*) show?"
p my_string.delete('^a-zA-Z')
#=>"Heresthebutwilldashescommasstarsshow"
#2
4
I have this one
我有这个
src.gsub(/[^a-z]/i, "")
also not shorter, but better to read in my opinion.
也不短，但在我看来更好阅读。
The i modifier makes the regex case independent, so that a-z matches also A-Z. A small difference is that this regex will also replace _ which is not replaced by yours.
i修饰符使正则表达式独立，因此a-z也匹配A-Z。一个小的区别是这个正则表达式也将取代_而不是由你的。
#3
2
If you want to keep also unicode letters, use this one:
如果你想保留unicode字母，请使用以下字母：
/\PL/
This matches all non letter character.
这匹配所有非字母字符。