DartMap属性isEmpty-Dart教程|
来源：网络
编辑：安优
时间：2022-06-18
如果Map为空，则返回true。
语法
Map.isEmpty
例
void main() { var details = {'Usrname':'tom','Password':'pass@123'}; print(details.isEmpty); var hosts = {}; print(hosts.isEmpty); }
它将产生以下 输出
false true
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