从属性对象创建对象的更好方法？

Question

在我的应用中，我使用来自 API 请求的数据创建了几个不同的对象，如下所示：

const newRelationship = new Relationship(
    data.id,
    data.account_id,
    data.name,
    data.description,
    data.created_at,
    data.created_by,
    data.deleted_at,
    data.deleted_by,
    data.updated_at,
    data.updated_by,
);

这感觉有点麻烦。有没有更好的（一行）方法来做到这一点，而不是像这样手动写出所有参数？

我希望如下所示，但我还没有 100% 了解传播/解构。

const newRelationship = new Relationship(...data);

我的关系构造函数如下：

constructor(id, accountId, name, description, createdAt, createdBy, updatedAt, updatedBy, deletedAt, deletedBy) {
    this.id = id || '';
    this.accountId = accountId || '';
    this.name = name || '';
    this.description = description || '';
    this.createdAt = createdAt || '';
    this.createdBy = createdBy || '';
    this.deletedAt = deletedAt || '';
    this.deletedBy = deletedBy || '';
    this.updatedAt = updatedAt || '';
    this.updatedBy = updatedBy || '';
}

Answer 1

如果您正在编写类/函数（意见），我会在参数中使用对象解构，它明确表明您正在将对象传递给函数并枚举属性（您可以如果您想在解构语句中重命名它们）。如果您使用的代码无法自行更新，我建议您使用带有Object.values()的数组扩展@

class Relationship {
  constructor({ id, account_id, name, description, created_at, created_by, deleted_at, deleted_by, updated_at, updated_by }) {
    // do stuff with your variables
    console.log(`ID is ${id}`);
  }
}

class OtherRelationship {
  constructor(id, account_id, name, description, created_at, created_by, deleted_at, deleted_by, updated_at, updated_by) {
    // do stuff with your variables
    console.log(`ID is ${id}`);
  }
}

const dummyParams = { 
  id: 1, 
  account_id: 1, 
  name: 'test', 
  description: 'tesssst', 
  created_at: 'some date', 
  created_by: 1, 
  deleted_at: 'some date', 
  deleted_by: 1, 
  updated_at: 'some date', 
  updated_by: 1, 
}

const newRelationship = new Relationship(dummyParams);
const newOtherRelationship = new OtherRelationship(...Object.values(dummyParams))

Answer 2

将您的构造函数简化为：

const defaults = { id: "", name: "", /*...*/ };

//...

constructor(options) {
 Object.assign(this, defaults, options);
}

那么你可以这样做：

new Relationship(data)