Object Property Assignment in JavaScript — http://bit.ly/js-obj

# Object Property Assignment.md

Six Ways of Object Property Assignment in JavaScript

— by Abhisek Pattnaik <[email protected]>

Assignments.md

Object Assignments

1. Using Dot Notation

   const student = {
    name: 'Abhisek'
   };
   
   student.age = 109; // dot operator assigment

2. Using Bracket Notation

   const student = {
    name: 'Abhisek'
   };
   
   student['age'] = 150; // bracket assignment

3. Using Object Spread

   let student = {
     name: 'Abhisek'
   };
   
   student = {
    ...student, // object spread
    age: 200
   } //➔ {name: 'Abhisek', age: 300}

4. Using Object.assign

   const student = {
    name: 'Abhisek'
   };
   
   Object.assign(student, {
    age: 300
   }); //➔ {name: 'Abhisek', age: 300}

5. Using Object.defineProperty

   const student = {
    name: 'Abhisek'
   };
   
   Object.defineProperty(student, 'age', {
    value: 400,
    writable: true,
    configurable: true,
    enumerable: true
   }); //➔ {name: 'Abhisek', age: 300}

6. Using Reflect.defineProperty

   const student = {
    name: 'Abhisek'
   };
   
   Reflect.defineProperty(student, 'age', {
    value: 600,
    writable: true,
    configurable: true,
    enumerable: true
   }); //➔ true