我需要将此ProxyPass /myapp http://localhost:8080/myapp
ProxyPassReverse /myapp http://localhost:8080/myapp
之类的列表转换为此["a","b","c"]
。我用的是
['a','b','c']
从splitOn
给我[[Char]]
的函数。有没有办法将此字符串列表转换为char列表?假设字符串长度为1。
答案 0 :(得分:4)
git checkout -b branch1_redo abcd123
会为您提供与concat ["a", "b", "c"]
"abc"
答案 1 :(得分:4)
是的,您可以使用concat :: [[a]] -> [a]
:
Prelude> concat ["a","b","c"]
"abc"
由于String
是[Char]
的类型别名,因此"abc"
是['a', 'b', 'c']
的缩写:
Prelude> concat ["a","b","c"] == ['a', 'b', 'c']
True