whole_func_string: function firstElementIsBreakline( dom ) {
  	if ( dom.childNodes.length === 0 ) {
  		return dom.nodeName === 'BR' && dom;
  	}
  
  	return firstElementIsBreakline( dom.firstChild );
  }
func_code_string: function firstElementIsBreakline( dom ) {
  	if ( dom.childNodes.length === 0 ) {
  		return dom.nodeName === 'BR' && dom;
  	}
  
  	return firstElementIsBreakline( dom.firstChild );
  }
func_documentation_string: Returns the node if first element ( checking nested ) is a br
  else returns falsy