CODEWITHSUNDEEP
javascriptrubysinatraerb
alexjfno1
alexjfno1

Reputation: 337

Can you inject javascript into an ERB file?

I am working on a ruby sinatra app and wanted to know if it was possible to inject some javascript at the end of one my erb files from my routes.rb file. I have seen some ruby gems do this before but haven't been able to find a way to do this.

Any help would be appreciated.

Alex

Upvotes: 2

Views: 924

Answers (2)

Evgeny
Evgeny

Reputation: 61

You can take a look at how you can use content_for from rails and use it in your project: http://apidock.com/rails/ActionView/Helpers/CaptureHelper/content_for

I think you can grab this source of the method:

  def content_for(name, content = nil, options = {}, &block)
    if content || block_given?
      if block_given?
        options = content if content
        content = capture(&block)
      end
      if content
        options[:flush] ? @view_flow.set(name, content) : @view_flow.append(name, content)
      end
      nil
    else
      @view_flow.get(name).presence
    end
  end

Then use it like this:

in your view:

<%= content_for :my_awesome_js %>

in .rb file:

content_for :my_awesome_js do
  "<script>
    $(document).ready(function() {
      alert('Hello world!');
    });
  </script>"
end

Upvotes: 0

Evgeny
Evgeny

Reputation: 61

You can inject javascript in your .erb files like this: 

  <script>
    $(document).ready(function() {
      alert('Hello world!');
    });
  </script>

Upvotes: 0

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