相关回答:

"   clean up my edges    ".strip

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"clean up my edges"

相关回答:

"   clean up my edges    ".strip

返回

"clean up my edges"

"asd sda sda sd".gsub(' ', '')
=> "asdsdasdasd"

s = "I have white space".delete(' ')

并模拟PHP的trim()函数:

s = "   I have leading and trailing white space   ".strip

gsub方法就可以了。 gsub方法可以在字符串上调用，并说:

a = "this is a string"
a = a.gsub(" ","")
puts a
#Output: thisisastring

gsub方法搜索第一个参数的每一次出现 然后用第二个参数替换它。在这种情况下，它将替换字符串中的每个空格并删除它。

另一个例子:

b = "the white fox has a torn tail"

我们把所有出现的字母t都换成大写的t

b = b.gsub("t","T")
puts b 
#Output: The whiTe fox has a Torn Tail

我会用这样的方法:

my_string = "Foo bar\nbaz quux"

my_string.split.join
=> "Foobarbazquux"