// Exist checks whether the links accessed by the specified keys exist or not.
Exist checks whether the links accessed by the specified keys exist or not.
// Exist checks whether the links accessed by the specified keys exist or not .
func (l Links) Exist(kk ...LinkKey) bool {
	if l.ll == nil {
		return false
	}
	for _, k := range kk {
		if v, ok := l.ll[k]; !ok || v == "" {
			return false
		}
	}
	return true
}
func ( l Links ) Exist ( kk ... LinkKey ) bool { if l . ll == nil { return false } for _ , k := range kk { if v , ok := l . ll [ k ] ; ! ok || v == " " { return false } } return true }
Exist checks whether the links accessed by the specified keys exist or not.
Exist checks whether the links accessed by the specified keys exist or not .