rails-显示文本字段中的certian字符数

Chr*_*len 7 ruby text ruby-on-rails

我正在运行一个rails项目,我正在显示一个通常太长的文本字段.如果有任何我可以调用的东西只在视图页面上显示20个单词或120个字符?

pka*_*ing 14

您可能对TextHelper的truncate函数感兴趣:

  truncate("Once upon a time in a world far far away")
  # => Once upon a time in a world f...

  truncate("Once upon a time in a world far far away", :length => 14)
  # => Once upon a...

  truncate("And they found that many people were sleeping better.", :length => 25, "(clipped)")
  # => And they found that many (clipped)

  truncate("And they found that many people were sleeping better.", :omission => "... (continued)", :length => 15)
  # => And they found... (continued)
Run Code Online (Sandbox Code Playgroud)

  • 在红宝石中,你也可以给一个字符串范围.了mystring [0..119] (2认同)