Unwanted whitespace in Erb view_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-03-27 19:31 出处：网络

Here\'s my sinatra code: get \'/\' do foo = \'not bar\' erb :index end My layout.erb <html> <head></head>

Here's my sinatra code:

get '/' do
    foo = 'not bar'
    erb :index
end

My layout.erb

<html>
  <head></head>
  <body>
    <%= yield %>
  </body>
</html>

My index.erb

<div class="container">
</div>

now the problem is

Unwanted whitespace in Erb view

The extra text (hilighted with yellow) disturbs my design Any idea why this is happening? this dosn't happen if I dont use layout and use only index.erb with all html code

[Edit:] Use开发者_运维百科 of <%= yield -%> throws error (unexpected tUMINUS, expecting kEND ; @_out_buf.concat " "; - yield -; @_out_buf.concat "\n" ) in .... layout.rb

my best guess is the 4 spaces come from the soft tabs in your layout.erb

<body>
____<%= yield %>
</body>

try <body><%= yield%></body>?

I've been using Slim a long while and

body
= yield

never fails me whitespace

hate ERB

You can set this up with *trim_mode* parameter for ERB

From http://ruby-doc.org/stdlib-1.9.3/libdoc/erb/rdoc/ERB.html#method-c-new :

If trim_mode is passed a String containing one or more of the following modifiers, ERB will adjust its code generation as listed:

%  enables Ruby code processing for lines beginning with %
<> omit newline for lines starting with <% and ending in %>
>  omit newline for lines ending in %>