去除所有空白的Ruby函数是什么?我正在寻找一些类似于PHP的trim()?


当前回答

" Raheem Shaik ".strip

它将删除左边和右边的空格。 这段代码会给我们"拉希姆·谢克"

其他回答

Ruby的.strip方法执行与trim()相当的PHP功能。

删除所有空白:

"  leading    trailing   ".squeeze(' ').strip
=> "leading trailing"

@塔斯让我意识到我原来的答案连续删除重复的字母-恶心!从那以后,我改用了压缩方法,如果使用Rails框架,这种方法对这种情况更聪明。

require 'active_support/all'
"  leading    trailing   ".squish
=> "leading trailing"

"  good    men   ".squish
=> "good men"

引用:http://apidock.com/rails/String/squish

别忘了:

$ s = "   I have white space   ".split
=> ["I", "have", "white", "space"]

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。

相关回答:

"   clean up my edges    ".strip

返回

"clean up my edges"

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"