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how to push new element to array of objects? [duplicate]

This question already has answers here:
Copy array items into another array
(19 answers)
Closed 10 days ago.
Here i have Array of objects, in this agents array has 0 elements. i have add an object to this. "agents": [{}] in this i want to add below element:
{
"refURL": "/unifiedconfig/config/agentteam/5020",
"changeStamp": 18,
"agentCount": 0,
"description": "Cumulus All Team",
"name": "CumulusAll",
"peripheral": {
"id": 5000,
"name": "CUCM_PG_1"
},
"peripheralId": 5000,
"supervisorCount": 0,
"agents": [
{}
]
}
I want to add below element to the above in agents array "agents" [{}]
{
"agent": [
{
"refURL": "/unifiedconfig/config/agent/5101",
"agentId": "1300",
"firstName": "Sammy",
"lastName": "Jackson",
"userName": "cgjackson"
},
{
"refURL": "/unifiedconfig/config/agent/5106",
"agentId": "1305",
"firstName": "Angel",
"lastName": "Jolie",
"userName": "cgjolie"
},
{
"refURL": "/unifiedconfig/config/agent/5109",
"agentId": "1308",
"firstName": "Steve",
"lastName": "O",
"userName": "cgsteveo"
}
]
}
This is the final output i want to be achieved
{
"refURL": "/unifiedconfig/config/agentteam/5016",
"changeStamp": 201,
"agentCount": 3,
"description": "Cumulus Finance Team",
"name": "CumulusFinance",
"peripheral": {
"id": 5000,
"name": "CUCM_PG_1"
},
"peripheralId": 5000,
"supervisorCount": 1,
"agents": [
{
"agent": [
{
"refURL": "/unifiedconfig/config/agent/5101",
"agentId": "1300",
"firstName": "Sammy",
"lastName": "Jackson",
"userName": "cgjackson"
},
{
"refURL": "/unifiedconfig/config/agent/5106",
"agentId": "1305",
"firstName": "Angel",
"lastName": "Jolie",
"userName": "cgjolie"
},
{
"refURL": "/unifiedconfig/config/agent/5109",
"agentId": "1308",
"firstName": "Steve",
"lastName": "O",
"userName": "cgsteveo"
}
]
}
],
"supervisors": [
{
"supervisor": [
{
"refURL": "/unifiedconfig/config/agent/5174",
"agentId": "1082",
"firstName": "Rick",
"lastName": "Barrows",
"userName": "rbarrows#dcloud.cisco.com"
}
]
}
]
}

const obj = {"refURL":"/unifiedconfig/config/agentteam/5020","changeStamp":18,"agentCount":0,"description":"Cumulus All Team","name":"CumulusAll","peripheral":{"id":5000,"name":"CUCM_PG_1"},"peripheralId":5000,"supervisorCount":0,"agents":[{}]}
const obj1= {
"agent":[{"refURL":"/unifiedconfig/config/agent/5101","agentId":"1300","firstName":"Sammy","lastName":"Jackson","userName":"cgjackson"},{"refURL":"/unifiedconfig/config/agent/5106","agentId":"1305","firstName":"Angel","lastName":"Jolie","userName":"cgjolie"},{"refURL":"/unifiedconfig/config/agent/5109","agentId":"1308","firstName":"Steve","lastName":"O","userName":"cgsteveo"}]
}
obj.agents.splice(0,1,obj1);
console.log(JSON.stringify(obj))
I replaced answer again, please check.
> Blockquote

You can either do it via expression or side-effect. I'm going to name your object oldObject and your agents object agentsObject.
Expression:
const newObject = {
...oldObject,
agents: [ agentsObject ],
};
Side-effect:
oldObject.agents = [ agentsObject ];

How to flatten this kind of arrays?

I am trying to flatten an array but facing some problem in that. I have this data available to be flattened.
arr = [
{
"data": [
[
{
"_id": "5ee97ee7f25d1c1482717bdf",
"email": "test1#test.io",
"profileImages": [],
"username": "test1",
"birthday": "2020-06-11T10:11:32.000Z",
"phoneNumber": "+910000000000",
"location": "Test Location",
"firstName": "test1",
"lastName": "test1",
}
],
[
{
"_id": "5ee97ef2f25d1c1482717be1",
"email": "test2#test.io",
"profileImages": [],
"username": "test2",
"birthday": "2020-06-11T10:11:32.000Z",
"phoneNumber": "+910000000000",
"location": "Test Location"
}
]
]
}
],
this is what I have.... and I want this data in a way such that it should merge the data in a single array like this below structure
data: [
{
"_id": "5ee97ee7f25d1c1482717bdf",
"email": "test1#test.io",
"profileImages": [],
"username": "test1",
"birthday": "2020-06-11T10:11:32.000Z",
"phoneNumber": "+910000000000",
"location": "Test Location",
"firstName": "test1",
"lastName": "test1"},
{
"_id": "5ee97ef2f25d1c1482717be1",
"email": "test2#test.io",
"profileImages": [],
"username": "test2",
"birthday": "2020-06-11T10:11:32.000Z",
"phoneNumber": "+910000000000",
"location": "Test Location"
}
]
I had tried to use lodash library to flatten it but it didn't work. Any suggestions for this that how can i flatten these arrays to a single array?

You can do this by making use of combination of flatMap and flat(), flat will flatten the inner array and flatMap for the outer array.
var arr = [ { "data": [ [ { "_id": "5ee97ee7f25d1c1482717bdf", "email": "test1#test.io", "profileImages": [], "username": "test1", "birthday": "2020-06-11T10:11:32.000Z", "phoneNumber": "+910000000000", "location": "Test Location", "firstName": "test1", "lastName": "test1", } ], [ { "_id": "5ee97ef2f25d1c1482717be1", "email": "test2#test.io", "profileImages": [], "username": "test2", "birthday": "2020-06-11T10:11:32.000Z", "phoneNumber": "+910000000000", "location": "Test Location" } ] ] }];
var result = arr.flatMap(obj=>obj.data.flat());
console.log(result);
I hope this helps.

flatMap and flat() is not widely supported across all the browser. See this: Search in multidimensional array (Algorithm)
So simple recursion is the safest bet.
var data = [
[
{
"_id": "5ee97ee7f25d1c1482717bdf",
"email": "test1#test.io",
"profileImages": [],
"username": "test1",
"birthday": "2020-06-11T10:11:32.000Z",
"phoneNumber": "+910000000000",
"location": "Test Location",
"firstName": "test1",
"lastName": "test1",
}
],
[
{
"_id": "5ee97ef2f25d1c1482717be1",
"email": "test2#test.io",
"profileImages": [],
"username": "test2",
"birthday": "2020-06-11T10:11:32.000Z",
"phoneNumber": "+910000000000",
"location": "Test Location"
}
]
]
var result = [];
function flatten(data){
data.forEach(k=>{
if(Array.isArray(k)){
flatten(k)
}else{
result.push(k)
}
});
return result;
}
console.log(flatten(data))

you can use flat
var arr = [ { "data": [ [ { "_id": "5ee97ee7f25d1c1482717bdf", "email": "test1#test.io", "profileImages": [], "username": "test1", "birthday": "2020-06-11T10:11:32.000Z", "phoneNumber": "+910000000000", "location": "Test Location", "firstName": "test1", "lastName": "test1", } ], [ { "_id": "5ee97ef2f25d1c1482717be1", "email": "test2#test.io", "profileImages": [], "username": "test2", "birthday": "2020-06-11T10:11:32.000Z", "phoneNumber": "+910000000000", "location": "Test Location" } ] ] }];
console.log([...arr[0].data.flat()])

How to access two data stored in array object that are linked by one field?

I have a REST API from which i am fetching the json data and storing them in array. The API looks like below:
[
{
"id": "100",
"name": "Person1",
"number": "+91-8980439023"
},
{
"id": "102",
"name": "Person2",
"number": "+91-5980339023"
},
{
"id": "105",
"name": "Person3",
"number": "+91-8980439023"
},
{
"id": "101",
"name": "Person4",
"number": "+91-8980439023",
"parent": "105"
},
{
"id": "110",
"name": "Person5",
"number": "+91-8980439023"
},
{
"id": "115",
"name": "Person6",
"number": "+91-9834295899",
"parent": "100"
}
]
Some of the data have "parent" field.The value in the "parent" field is the "id" of the other data. Now i want to store these data which have reference in the "parent" field of other data in a separate array. For example:
The data with id=101 has "parent" key with value 105 which in turn is the id of the 3rd data.So the data with id=105 should be stored in separate array.
How can i do in a simple and scalable way?

Try
let parents = data.filter(d=> data.some(c=> c.parent==d.id));
let data = [
{
"id": "100",
"name": "Person1",
"number": "+91-8980439023"
},
{
"id": "102",
"name": "Person2",
"number": "+91-5980339023"
},
{
"id": "105",
"name": "Person3",
"number": "+91-8980439023"
},
{
"id": "101",
"name": "Person4",
"number": "+91-8980439023",
"parent": "105"
},
{
"id": "110",
"name": "Person5",
"number": "+91-8980439023"
},
{
"id": "115",
"name": "Person6",
"number": "+91-9834295899",
"parent": "100"
}
];
let parents = data.filter(d=> data.some(c=> c.parent==d.id));
console.log(parents);
To have O(2n) complexity first put parents id to some hash table and then filter
let data = [
{
"id": "100",
"name": "Person1",
"number": "+91-8980439023"
},
{
"id": "102",
"name": "Person2",
"number": "+91-5980339023"
},
{
"id": "105",
"name": "Person3",
"number": "+91-8980439023"
},
{
"id": "101",
"name": "Person4",
"number": "+91-8980439023",
"parent": "105"
},
{
"id": "110",
"name": "Person5",
"number": "+91-8980439023"
},
{
"id": "115",
"name": "Person6",
"number": "+91-9834295899",
"parent": "100"
}
];
let hash = {};
data.forEach(d=> hash[d.parent]=d);
let parents = data.filter(d=> d.id in hash);
console.log(parents);

You can use map method and store elements into Map collection to have O(1) when you map items:
const maps = new Map(fooArray.map(o=> [o.id, o]))
const result = fooArray.map(({parent, ...rest}) => {
let obj = {...rest};
parent ? (obj.parent = [maps.get(parent)]) : null;
return obj;
})
console.log(result);
An example:
const fooArray = [
{
"id": "100",
"name": "Person1",
"number": "+91-8980439023"
},
{
"id": "102",
"name": "Person2",
"number": "+91-5980339023"
},
{
"id": "105",
"name": "Person3",
"number": "+91-8980439023"
},
{
"id": "101",
"name": "Person4",
"number": "+91-8980439023",
"parent": "105"
},
{
"id": "110",
"name": "Person5",
"number": "+91-8980439023"
},
{
"id": "115",
"name": "Person6",
"number": "+91-9834295899",
"parent": "100"
}
]
const maps = new Map(fooArray.map(o=> [o.id, o]))
const result = fooArray.map(({parent, ...rest}) => {
let obj = {...rest};
parent ? (obj.parent = [maps.get(parent)]) : null;
return obj;
})
console.log(result);

You can also collect all parent ids and then find records which has the same id as some parent:
let par_ids = [];
records.forEach(pid =>{
for (let [key, value] of Object.entries(pid)) {
key == 'parent' ? par_ids.push(value) : null;
}
})
let res = records.filter(ob => par_ids.includes(ob.id))
let records = [
{
"id": "100",
"name": "Person1",
"number": "+91-8980439023"
},
{
"id": "102",
"name": "Person2",
"number": "+91-5980339023"
},
{
"id": "105",
"name": "Person3",
"number": "+91-8980439023"
},
{
"id": "101",
"name": "Person4",
"number": "+91-8980439023",
"parent": "105"
},
{
"id": "110",
"name": "Person5",
"number": "+91-8980439023"
},
{
"id": "115",
"name": "Person6",
"number": "+91-9834295899",
"parent": "100"
}
];
let par_ids = [];
records.forEach(pid =>{
for (let [key, value] of Object.entries(pid)) {
key == 'parent' ? par_ids.push(value) : null;
}
})
let res = records.filter(ob => par_ids.includes(ob.id))
console.log(res)

Filter search based on array values in angular 4

I am new in angular 4. While trying to make a search bar got stuck in the logic. So I have a JSON file, and I am trying to search relevant key value pair of that JSON file based on an array values.
My json file :
const trips = {
"20180201": [{
"journeyId": 1001,
"Number": "001",
"DriverName": "Alex",
"Transporter": {
"id": "T1",
"number": "AN01001",
"Company": "Tranzient"
},
"place": [{
"id": 001,
"value": "Washington DC"
},
{
"id": 002,
"value": "Canberra"
}
],
},
{
"journeyId": 1002,
"Number": "001",
"DriverName": "Tom",
"Transporter": {
"id": "T2",
"number": "AN01002",
"Company": "Trax"
},
"place": [{
"id": 2,
"value": "Canberra"
},
{
"id": 4,
"value": "Vienna"
}
],
},
{
"journeyId": 1003,
"Number": "004",
"DriverName": "Jack",
"Transporter": {
"id": "T3",
"number": "AN01003",
"Company": "Trax"
},
"place": [{
"id": 1,
"value": "Washington DC",
}, {
"id": 4,
"value": "Vienna",
}],
}
],
"20180211": [{
"journeyId": 1004,
"Number": "005",
"DriverName": "Jack",
"Transporter": {
"id": "T3",
"number": "AN01013",
"Company": "Trax"
},
"place": [{
"id": 5,
"value": "Bridgetown"
},
{
"id": 6,
"value": "Ottawa"
},
{
"id": 4,
"value": "Boston"
}
],
},
{
"journeyId": 1005,
"Number": "005",
"DriverName": "Jerry",
"Transporter": {
"id": "T3",
"number": "AN01020",
"Company": "Trax"
},
"place": [{
"id": 5,
"value": "Bridgetown"
},
{
"id": 6,
"value": "Ottawa"
}
],
}
],
"20180301": [{
"journeyId": 1006,
"Number": "005",
"DriverName": "demy",
"Transporter": {
"id": "T3",
"number": "AN01003",
"Company": "Trax"
},
"place": [{
"id": 5,
"value": "Bridgetown"
},
{
"id": 6,
"value": "Vienna"
}
],
}],
};
I have an array
SelectedValues= ["20180201","Vienna"]
All the array values should search depending on the result from its previous array value. For example in this array above, I need to return key value pair of all the places which have its value "Vienna" in date "20180201".
expected output:
trips= {
"20180201": [
{
"journeyId": 1002,
"Number": "001",
"DriverName": "Tom",
"Transporter": {
"id": "T2",
"number": "AN01002",
"Company": "Trax"
},
"place": [{
"id": 2,
"value": "Canberra"
},
{
"id": 4,
"value": "Vienna"
}
],
},
{
"journeyId": 1003,
"Number": "004",
"DriverName": "Jack",
"Transporter": {
"id": "T3",
"number": "AN01003",
"Company": "Trax"
},
"place": [{
"id": 1,
"value": "Washington DC",
}, {
"id": 4,
"value": "Vienna",
}],
}
]
}
So the result returns all the key value pair that have place "Vienna" within the date " 20180201 " .
My solution that I tried to use :
filter(trips, SelectedValues) {
const check = v => options.includes(v) || v && typeof v === 'object' && Object.keys(v).some(l => check(v[l]));
var result = {};
Object.keys(object).forEach(function (k) {
var temp = options.includes(k)
? object[k]
: object[k].filter(check);
if (temp.length) {
result[k] = temp;
}
});
return result;
}
The problem is that it is returning all the key-value pairs that matches all the values in SelectedValues(Implementing OR logic). But I need to implement the array search with AND logic.

How can I access specific value of JSON object? [duplicate]

This question already has answers here:
How can I access and process nested objects, arrays, or JSON?
(31 answers)
Closed 6 years ago.
I can't seem to console.log the item name and just that. It's in the position data -> pricing -> tables -> items -> name. I am going for an output that says "Toy Panda".
[
{
"event": "recipient_completed",
"data": {
"id": "msFYActMfJHqNTKH8YSvF1",
"name": "Sample Document",
"status": "document.draft",
"date_created": "2014-10-06T08:42:13.836022Z",
"date_modified": "2016-03-04T02:21:13.963750Z",
"action_date": "2016-09-02T22:26:52.227554",
"action_by": {
"id": "FyXaS4SlT2FY7uLPqKD9f2",
"email": "john#appleseed.com",
"first_name": "John",
"last_name": "Appleseed"
},
"created_by": {
"id": "FyXaS4SlT2FY7uLPqKD9f2",
"email": "john#appleseed.com",
"first_name": "John",
"last_name": "Appleseed",
"avatar": "https://pd-live-media.s3.amazonaws.com/users/FyXaS4SlT2FY7uLPqKD9f2/avatar.jpg"
},
"recipients": [
{
"id": "FyXaS4SlT2FY7uLPqKD9f2",
"email": "john#appleseed.com",
"first_name": "John",
"last_name": "Appleseed",
"role": "signer",
"recipient_type": "Signer",
"has_completed": true
}
],
"sent_by": {
"id": "FyXaS4SlT2FY7uLPqKD9f2",
"email": "john#appleseed.com",
"first_name": "John",
"last_name": "Appleseed",
"avatar": "https://pd-live-media.s3.amazonaws.com/users/FyXaS4SlT2FY7uLPqKD9f2/avatar.jpg"
},
"metadata": {
"salesforce_opp_id": "123456",
"my_favorite_pet": "Panda"
},
"tokens": [
{
"name": "Favorite Animal",
"value": "Panda"
}
],
"fields": [
{
"uuid": "YcLBNUKcx45UFxAK3NjLIH",
"name": "Textfield",
"title": "Favorite Animal",
"value": "Panda",
"assigned_to": {
"id": "FyXaS4SlT2FY7uLPqKD9f2",
"email": "john#appleseed.com",
"first_name": "John",
"last_name": "Appleseed",
"role": "Signer",
"recipient_type": "signer",
"has_completed": true,
"type": "recipient"
}
}
],
"pricing": {
"tables": [
{
"id": 82307036,
"name": "PricingTable1",
"is_included_in_total": true,
"summary": {
"discount": 10,
"tax": 0,
"total": 60,
"subtotal": 60
},
"items": [
{
"id": "4ElJ4FEsG4PHAVNPR5qoo9",
"qty": 1,
"name": "Toy Panda",
"cost": "25",
"price": "53",
"description": "Buy a Panda",
"custom_fields": {
"sampleField": "Sample Field"
},
"custom_columns": {
"sampleColumn": "Sample Column"
},
"discount": 10,
"subtotal": 60
}
],
"total": 60
}
]
},
"tags": [
"test tag",
"sales",
"support"
]
}
}
]
I would really appreciate a tip. Thank you

If you store your JSON object into variable called obj you can access that value ("Toy Panda") with:
obj.data.pricing.tables[0].items[0].name
because tables and items are arrays.

Here is a sample example :
<script>
var data = '{"name": "mkyong","age": 30,"address": {"streetAddress": "88 8nd Street","city": "New York"},"phoneNumber": [{"type": "home","number": "111 111-1111"},{"type": "fax","number": "222 222-2222"}]}';
var json = JSON.parse(data);
alert(json["name"]); //mkyong
alert(json.name); //mkyong
</script>
Refer this link :[https://www.mkyong.com/javascript/how-to-access-json-object-in-javascript/][1]
In your case it should be something like :
var data = // your json;
var json = JSON.parse(data);
console.log(json.pricing.tables.items[0].name;