Read more

Rails: Passing array values to tag helpers like link_to

Dominik Schöler
March 14, 2019Software engineer at makandra GmbH

From at least Rails 4, the ActionView tag helper turns Array values of HTML options into a single space-separated string Show snapshot .
This means you can pass an array to :class options:

extra_classes = %w[one two]

= link_to 'Dashboard', root_path, class: ['btn', 'btn-primary', *extra_classes]
=> <a href="/" class="btn btn-primary one two">Dashboad</a>

= content_tag 'div', 'Hello World', class: %w[alert alert-info]
=> <div class="alert alert-info">Hello World</div>

= content_tag 'span', 'Hello World', class: []
=> <span class>Hello World</span>
Illustration web development

Do you need DevOps-experts?

Your development team has a full backlog? No time for infrastructure architecture? Our DevOps team is ready to support you!

  • We build reliable cloud solutions with Infrastructure as code
  • We are experts in security, Linux and databases
  • We support your dev team to perform
Read more Show snapshot
Posted by Dominik Schöler to makandra dev (2019-03-14 13:27)