define: DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY introduced: 1.0.0 default: false tags: - ecmascript - compliance description: > Add a non-standard "source" property to function instances. This allows function toString() to print out the actual function source. The property is disabled by default because it increases memory footprint. NOTE: Unimplemented as of Duktape 1.3.0.