instanceof
function Phone(serial, price, color){
this.serial = serial;
this.price = price;
this.color = color;
}
let phone1 = new Phone('abc1', 200, 'red');
let phone2 = new Phone('abc2', 400, 'green');
//instanceof
console.log(phone1 instanceof Phone) // true
//constructor
console.log(phone1.constructor === Phone) //truewhat is instance in javascript
In JavaScript, "instance" does not have this technical meaning because
JavaScript does not have this difference between classes and instances.
However, in talking about JavaScript, "instance" can be used informally
to mean an object created using a particular constructor function.Copyright © 2021 Codeinu
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