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= Javascript
You can add Javascript code by multiple ways in Decidim:
== Asset pipeline
Just add it to `app/assets/javascripts/application.js`. For example to create a new alert just add:
[source,javascript]
----
$(function(){
alert('foobar');
});
----
More information in https://guides.rubyonrails.org/asset_pipeline.html[Rails Asset Pipeline documentation].
== Head extra file
There's an special partial file for adding inline content in every public page. You just need to create a file called `app/views/layouts/decidim/_head_extra.html.erb`:
[source,javascript]
----
<script type="text/javascript">
$(function(){
alert('foobar');
});
</script>
----
== Custom HTML Header snippets
If you need changes on a multitenant installation, you can do so by enabling a configuration
in your `config/initializers/decidim.rb` file. Please do notice that this has security implications:
[source,ruby]
----
# Custom HTML Header snippets
#
# The most common use is to integrate third-party services that require some
# extra JavaScript or CSS. Also, you can use it to add extra meta tags to the
# HTML. Note that this will only be rendered in public pages, not in the admin
# section.
#
# Before enabling this you should ensure that any tracking that might be done
# is in accordance with the rules and regulations that apply to your
# environment and usage scenarios. This feature also comes with the risk
# that an organization's administrator injects malicious scripts to spy on or
# take over user accounts.
#
config.enable_html_header_snippets = true
----
Then you'll have a new textarea field called "Header snippets" in Administration -> Configuration -> Appearance (URL `/admin/organization/appearance/edit`):
image::header-snippet.png[Header snippet]
Notice that you can resize this textarea.
Version data entries
6 entries across 6 versions & 1 rubygems