Page::hasSubpages() 

\nn\t3::Page()->hasSubpages($pid = NULL); 

Checks whether a page has submenus

\nn\t3::Page()->hasSubpages();

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| @return boolean

Source Code 

public function hasSubpages( $pid = null ) {
	return count( $this->getSubpages($pid) ) > 0;
}

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