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

并模拟PHP的trim()函数:

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

使用gsub或delete。区别在于gsub可以删除制表符，而delete不能。有时文件中确实有编辑器添加的选项卡。

a = "\tI have some whitespaces.\t"
a.gsub!(/\s/, '')  #=>  "Ihavesomewhitespaces."
a.gsub!(/ /, '')   #=>  "\tIhavesomewhitespaces.\t"
a.delete!(" ")     #=>  "\tIhavesomewhitespaces.\t"
a.delete!("/\s/")  #=>  "\tIhavesomewhitespaces.\t"
a.delete!('/\s/')  #=>  using single quote is unexpected, and you'll get "\tI have ome whitepace.\t"

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

并模拟PHP的trim()函数:

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

相关回答:

"   clean up my edges    ".strip

返回

"clean up my edges"

你可以试试这个:

"ab c d efg hi ".split.map(&:strip)

为了得到这个:

["ab, "c", "d", "efg", "hi"]

或者如果你想要一个字符串，只需使用:

"ab c d efg hi ".split.join

你可以试试这个

"Some Special Text Values".gsub(/[[:space:]]+/, "")

使用:space:删除不间断的空格和常规空格。