JAVASCRIPT

accessing nested objects in javascript

const user = {
    id: 101,
    email: 'jack@dev.com',
    personalInfo: {
        name: 'Jack',
        address: {
            line1: 'westwish st',
            line2: 'washmasher',
            city: 'wallas',
            state: 'WX'
        }
    }
}

const name = user.personalInfo.name;
const userCity = user.personalInfo.address.city;

JavaScript Nested Objects

// nested object
const student = { 
    name: 'John', 
    age: 20,
    marks: {
        science: 70,
        math: 75
    }
}

// accessing property of student object
console.log(student.marks); // {science: 70, math: 75}

// accessing property of marks object
console.log(student.marks.science); // 70

js create nested object from fields

function assign(obj, keyPath, value) {
   lastKeyIndex = keyPath.length-1;
   for (var i = 0; i < lastKeyIndex; ++ i) {
     key = keyPath[i];
     if (!(key in obj)){
       obj[key] = {}
     }
     obj = obj[key];
   }
   obj[keyPath[lastKeyIndex]] = value;
}

javascript nested objects

Do my eyes decieve me, or is the second answer the same as the first, but
with more upvotes?

js create nested object from fields

var settings = {};
assign(settings, ['Modules', 'Video', 'Plugin'], 'JWPlayer');

accessing nested objects in javascript

{key: value, key: value, ...}

nested object in javascript

const employeeInfo = {
    employeeName: "John Doe",
    employeeId: 27,
    salary: {
        2018-19: "400000INR",
        2019-20: "500000INR",
        2020-21: "650000INR"
    },
    address: {
        locality: {
            address1: "1600 pebble road",
            address2: "Nearby XYZ Bank",
        },
        city: "Mumbai",
        state: "Maharashtra",
        country: "India"
    }
}