The Extras plugin will initialize the optional addon plugins from extras/ directory, if they were loaded.
Generally, for an extras plugin to have been loaded, 2 things must have happened:
- The extras plugins must be present in extras/ directory, for example after
running
git submodule update - One or more extras plugins are added to the impress.js presentation (the HTML
file) by the author using a regular
<script>tag.
If one or more extras plugins were so added, this plugin will automatically
discover them and perform initialization (such as calling
mermaid.initialize()).
If no extras plugins are added to a presentation, this plugin does nothing.
Note that some extra plugins (like mathjax) initialize themselves immediately, and there's nothing to do here.
Henrik Ingo (@henrikingo), 2016