How to push object array in array

Question

loggedUser as object in users index (unknown) variable:

// 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: []}
]

This is the array I want to push into object:

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);

Error : Cannot read property 'push' of undefined

I want to push docs array to loggedUser.docs array.

Answer 1

If you want to keep users and docs within an object you can do it this way (I've simplified the end code with basic strings to show that it works). I've created another variable called obj to store you're object somewhere.

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);

You could also do this with a function within the same object like this

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);		

Remember that when referencing the this.docs that it is returning an array so you'll need to make sure you put in index in there for it to refer to a particular object within that array (as I've done in this code on the last couple of values).

Answer 2

If users is an index of a variable, your code should look like this:

// 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

Change the colon (:) to an equals sign (=) The colon is used for assigning stuff to an id within an object or 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:[]}
  ]