hardened()
hardened() : boolean
Tests If Singleton Is Instantiated
Returns
boolean —Instantiated?
Singleton Interface
This provides more a way to identify a singleton than to offer any increased functionality.
CHANGELOG
1.0 created Singleton Interface - May 27th, 2013 2.0 refactored for Primus library - April 3rd, 2015 3.0 formatted for inclusion in the final phabstractic library - July 7th, 2016