Returns true when the named module is installed and active. Use it so a template still works on sites that don't have a module:
{if jrCore_module_is_active('jrAudio')}
{jrCore_list module="jrAudio" order_by="_created desc" limit="5"}
{/if}Use the module's directory name, such as jrAudio, not its title ("Audio"). It's shown as Directory on the module's Info tab.
For a single function from a module that may be missing, {jrCore_module_function} does the same check for you.