'-%>' (minus sign) at the end of a ERb sequence

前端 未结 2 990
攒了一身酷
攒了一身酷 2020-12-15 14:53

What\'s the point of using \'-\' (minus sign) at the end of a ERb sequence?

Example:

<% 3.times do -%>
  FooBar
<% end -%> So
相关标签:
2条回答
  • 2020-12-15 15:29

    Using a minus sign on the opening or closing part of an erb tag suppresses whitespace before or after the tag on that line.

    It was mainly useful when generating things like text/plain emails with erb but like @Simone pointed out, it's now moot.

    0 讨论(0)
  • 2020-12-15 15:49

    Before Rails 3, ERB adds additional spaces before and after the value when rendering the HTML content. In HTML spaces are not significant, except when you are using special tags such as <pre>.

    Using the - sign forced ERB to avoid additional spaces.

    This is completely useless in Rails 3.

    0 讨论(0)
提交回复
热议问题