Ruby的String的.scan()和.join()方法也可以帮助克服字符串中的空白。

扫描(\ w + /)。Join将删除所有空格并连接字符串

string = "White spaces in me".scan(/\w+/).join
=>"Whitespacesinme"

它还从字符串的左右部分删除空格。表示ltrim, rtrim和trim。以防万一有人有C, FoxPro或Visual Basic的背景，然后跳到Ruby。

2.1.6:002 > string = " White spaces in me ".scan(/\w+/).join = > " Whitespacesinme " 2.1.6:003 > string = " White spaces in me".scan(/\w+/).join = > " Whitespacesinme " 2.1.6:004 > string = "White spaces in me ".scan(/\w+/).join = > " Whitespacesinme " 2.1.6:005 >

现在说这个有点晚了，但是任何在谷歌上搜索这个页面的人都可能对这个版本感兴趣

如果你想清理一大块预先格式化的文本，用户可能以某种方式剪切和粘贴到你的应用程序，但保留单词间距，试试这个:

content = "      a big nasty          chunk of     something

that's been pasted                        from a webpage       or something        and looks 

like      this

"

content.gsub(/\s+/, " ").strip

#=> "a big nasty chunk of something that's been pasted from a webpage or something and looks like this"

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

"1232 23 2 23 232 232".delete(' ')
=> "123223223232232"

删除工作更快=)

user         system     total      real
gsub, s      0.180000   0.010000   0.190000 (0.193014)
gsub, s+     0.200000   0.000000   0.200000 (0.196408)
gsub, space  0.220000   0.000000   0.220000 (0.222711)
gsub, join   0.200000   0.000000   0.200000 (0.193478)
delete       0.040000   0.000000   0.040000 (0.045157)

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

Ruby的String的.scan()和.join()方法也可以帮助克服字符串中的空白。

扫描(\ w + /)。Join将删除所有空格并连接字符串

string = "White spaces in me".scan(/\w+/).join
=>"Whitespacesinme"

它还从字符串的左右部分删除空格。表示ltrim, rtrim和trim。以防万一有人有C, FoxPro或Visual Basic的背景，然后跳到Ruby。

2.1.6:002 > string = " White spaces in me ".scan(/\w+/).join = > " Whitespacesinme " 2.1.6:003 > string = " White spaces in me".scan(/\w+/).join = > " Whitespacesinme " 2.1.6:004 > string = "White spaces in me ".scan(/\w+/).join = > " Whitespacesinme " 2.1.6:005 >