如何在数组中推送对象数组

Question

loggedUser作为object索引（未知）变量中的users：

// This is the users index of a variable containing multiple users which have a `docs` array.
users: [
    {id: '140255045', password: '72465091Be', email: 'a@gmail.com', tc: '1', dId: 1, name: 'Erkan', surname: 'Çalışkan', docs: []},
    {id: '1', password: '1', email: 'a@gmail.com', tc: '1', dId: 1, name: 'Erkan', surname: 'Çalışkan', docs: []},
    {id: '2', password: '2', email: 'a@gmail.com', tc: '1', dId: 2, name: 'Erkan', surname: 'Çalışkan', docs: []},
    {id: '3', password: '3', email: 'a@gmail.com', tc: '1', dId: 2, name: 'Erkan', surname: 'Çalışkan', docs: []}
]

这是我要插入对象的数组：

var docs = [
    {
        type: '',
        piece: '',
        insti: '',
        desc: '',
        selected: '',
        date: ''
    }
];

var a = this.docs.push({
    type: this.docs.type,
    piece: this.docs.piece,
    insti: this.docs.insti,
    desc: this.docs.desc,
    selected: this.docs.selected,
    date: today
});

this.loggedUser.docs.push(a);

console.log(this.loggedUser);

  

错误：无法读取未定义的属性“ push”

我想将docs数组推送到loggedUser.docs数组。

Answer 1

将冒号（:）更改为等号（=） 冒号用于为对象或数组中的 内的ID分配内容。

users = [
    {id:'140255045',password:'72465091Be',email:'a@gmail.com',tc:'1',dId:1,name:'Erkan',surname:'Çalışkan',docs:[]},
    {id:'1',password:'1',email:'a@gmail.com',tc:'1',dId:1,name:'Erkan',surname:'Çalışkan',docs:[]},
    {id:'2',password:'2',email:'a@gmail.com',tc:'1',dId:2,name:'Erkan',surname:'Çalışkan',docs:[]},
    {id:'3',password:'3',email:'a@gmail.com',tc:'1',dId:2,name:'Erkan',surname:'Çalışkan',docs:[]}
  ]

Answer 2

如果users是变量的索引，则您的代码应如下所示：

// Schema for `this.loggeduser`
{
    id: '140255045',
    password: '72465091Be',
    email: 'a@gmail.com',
    tc: '1',
    dId:1,
    name: 'Erkan',
    surname: 'Çalışkan',
    docs:[]
}

// Declare docs as an `Array` object variable in `this` context.
this.docs = [
    {
        type: '',
        piece: '',
        insti: '',
        desc: '',
        selected: '',
        date: ''
    }
];

// Push an object into the declared array.
// By now `this.docs` should contain 2 objects.
this.docs.push({
    type: this.docs.type,
    piece: this.docs.piece,
    insti: this.docs.insti,
    desc: this.docs.desc,
    selected: this.docs.selected,
    date: today
});

// Push `this.docs` `Array` object.
// If `this.loggedUser` exists and has `docs` property of type `Array` this should work.
this.loggedUser.docs.push(this.docs);

console.log(this.loggedUser)

Answer 3

如果要将用户和文档保留在一个对象中，可以采用这种方式（我用基本字符串简化了结束代码，以表明它可以工作）。我创建了另一个名为obj的变量，以将对象存储在某个地方。

var obj = {
	users : [
			{id:'140255045',password:'72465091Be',email:'a@gmail.com',tc:'1',dId:1,name:'Erkan',surname:'Çalışkan',docs:[]},
			{id:'1',password:'1',email:'a@gmail.com',tc:'1',dId:1,name:'Erkan',surname:'Çalışkan',docs:[]},
			{id:'2',password:'2',email:'a@gmail.com',tc:'1',dId:2,name:'Erkan',surname:'Çalışkan',docs:[]},
			{id:'3',password:'3',email:'a@gmail.com',tc:'1',dId:2,name:'Erkan',surname:'Çalışkan',docs:[]}
		  ],
	
	docs:	[{	type : '',
				piece : '',
				insti : '',
				desc : '',
				selected : '',
				date : ''}]	
}
	

obj.docs.push({	type : 'test',
				piece : 'test',
				insti : 'test',
				desc : 'test',
				selected : 'test',
				date : 'test'});
 
		
console.log(obj.docs);

您也可以在同一个对象中使用类似的功能来实现此目的

var obj = {
	users : [
			{id:'140255045',password:'72465091Be',email:'a@gmail.com',tc:'1',dId:1,name:'Erkan',surname:'Çalışkan',docs:[]},
			{id:'1',password:'1',email:'a@gmail.com',tc:'1',dId:1,name:'Erkan',surname:'Çalışkan',docs:[]},
			{id:'2',password:'2',email:'a@gmail.com',tc:'1',dId:2,name:'Erkan',surname:'Çalışkan',docs:[]},
			{id:'3',password:'3',email:'a@gmail.com',tc:'1',dId:2,name:'Erkan',surname:'Çalışkan',docs:[]}
		  ],
	
	docs:	[{	type : '',
				piece : '',
				insti : '',
				desc : '',
				selected : '',
				date : ''}],
	
	a: function () {
		this.docs.push({	type : 'test',
				piece : 'test',
				insti : 'test',
				desc : 'test',
				selected : this.docs[0].selected,
				date : this.docs[0].selected});
		
	}
}
	

obj.a();
 
		
console.log(obj.docs);		

请记住，在引用this.docs时，它正在返回一个数组，因此您需要确保在其中放置索引，以便它可以引用该数组中的特定对象（就像我在本文中所做的那样）代码的最后两个值）。