Primitive vs. Objects - Node.js Object

Node.js examples for Object:Object Operation

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Description

Primitive vs. Objects

Demo Code

var a = 23;/*ww w.  ja v  a  2s  .  c  o m*/
var b = a;

// Now mutate var a:
a = 46;
console.log("A = " + a + " | B = " + b);

var obj1 = {
  name: "John",
  age: 26
};

var obj2 = obj1;

// Now mutate the age on Object 1:
obj1.age = 30;

console.log("Object 1 Age = " + obj1.age + " | Object 2 Age = " + obj2.age);

// Functions
var age = 27;
var obj = {
  name: "Jonas",
  city: "Lisbon"
};

// Now ue a function to mutate the object's data:
function change(a, b) {
  a = 30,
  b.city = "San Francisco";
}

change(age, obj);

console.log("Age = " + age + " | City = " + obj.city);

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