method

hidden_field_tag

Ruby on Rails latest stable (v7.1.3.2) - 4 notes - Class: ActionView::Helpers::FormTagHelper

hidden_field_tag(name, value = nil, options = {}) public

Creates a hidden form input field used to transmit data that would be lost due to HTTP’s statelessness or data that should be hidden from the user.

Options

Creates standard HTML attributes for the tag.

Examples

hidden_field_tag 'tags_list'
# => <input type="hidden" name="tags_list" id="tags_list" autocomplete="off" />

hidden_field_tag 'token', 'VUBJKB23UIVI1UU1VOBVI@'
# => <input type="hidden" name="token" id="token" value="VUBJKB23UIVI1UU1VOBVI@" autocomplete="off" />

hidden_field_tag 'collected_input', '', onchange: "alert('Input collected!')"
# => <input type="hidden" name="collected_input" id="collected_input"
     value="" onchange="alert('Input collected!')" autocomplete="off" />

Show source

# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 308
      def hidden_field_tag(name, value = nil, options = {})
        text_field_tag(name, value, options.merge(type: :hidden, autocomplete: "off"))
      end

December 8, 2011

1 thank

hidden field can be changed by JS

Plumba, it’s not that useless if you think about possibility to change a hidden field with JS

January 16, 2014

1 thank

Storing array values

I tried to add a array value using hidden_field_tag and access it in jquery. It just returns the flattened version of array. eg:(If i try to store [1,[1,2,3]] in hidden_field_tag , in jquery iam just getting ‘1 1 2 3’) but if i use input field with type=hidden iam getting the correct value. Why is that?

November 23, 2015 - (v3.2.13)

0 thanks

Rails 3.2.19

As Jebin reported, we are not getting the value in array format when we set the hidden_field_tag with an Array variable, instead it is a String that we are getting.

February 7, 2011