Question

I have a button and I want to set its onClick attribute dynamically each page load. I want to use application_helper to give it a custom javascript every time. It seems difficult to do because the Javascript is going to need access to stuff that only the ruby has access to. I wanted to build up a custom javascript with the application_helper module and yield the result of calling the helper method as the value to the onClick key in the Haml hash:

In application.html.haml:

%button{class: "user_navigation_menu_item", onClick: =  gimme_my_custom_javascript}

In application_helper,rb:

def gimme_my_custom_javascript
  javascript = "function(){"
  javascript +="alert('yo!');"
  javascript+="}"
end

Haml is yelling at me: ‘unexpected “=”‘

How do I do what I am trying to do?

Thank you

Answer 1

Just get rid of the = and it should work:

%button{class: "user_navigation_menu_item", onClick: gimme_my_custom_javascript}