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Immutability

What is meant by immutability?​

???

Memory allocation in primitives vs reference types​

Primitive types​

let a = 10;
var b = a;
b = 20;
console.log(a); // 10 
console.log(b); // 20

Reference types​

let obj = {
  name: 'John',
  age: 20
};

let obj2 = obj;

obj2.age = 30;

console.log(obj.age); // 30
console.log(obj2.age); // 30


Doubts/Topics to cover​

  • What is meant by immutability?
  • How memory allocation works for primitives vs reference types and how it affects immutability (explain with examples)
  • Are strings immutable data type?
  • How to make a reference type immutable?
  • Immutability in React & Redux

References​

Notes​