flutter 中的深拷贝https://blog.csdn.net/sinat_37255207/article/de

blog.csdn.net/sinat_37255…

在web开发中,在遇到基础类型和复杂类型的深拷贝问题大部分可以通过 let newObj = JSON.parse(JSON.stringify(obj));来完成深拷贝(函数除外拓展www.jianshu.com/p/1c142ec2c…) 1.flutter 的dart 语法在处理json map 的时候可以通过类似思路

 Map clonedObject = JSON.decode(JSON.encode(object));

2.dart 处理实类深拷贝(在线json转dart 类网站jsontodart.com/)

//dart实例
class Autogenerated {
  int code;
 
  Autogenerated({this.code});
 
  Autogenerated.fromJson(Map<String, dynamic> json) {
    code = json['code'];
  }
 
  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['code'] = this.code;
    return data;
  }
}
 
 
//深拷贝
Autogenerated demo1=Autogenerated.fromJson({"code":1});
//demo2拷贝成功
Autogenerated demo2=Autogenerated.fromJson(demo1.toJson());