function Car(type) {
this.type = type;
this.color = 'red';
this.getInfo = getCarInfo;
}
function getCarInfo() {
return this.color + ' ' + this.type + ' car';
}
Usage
let car = new Car('diesel');
car.color = 'reddish';
alert(car.getInfo());
function Car(type) {
this.type = type;
this.color = "red";
this.getInfo = function() {
return this.color + ' ' + this.type + ' car';
};
}
function Car(type) {
this.type = type;
this.color = "red";
}
Car.prototype.getInfo = function() {
return this.color + ' ' + this.type + ' car';
};
Literals are shorter way to define objects and arrays in JavaScript. To create an empty object using you can do:
let o = {};
instead of the "normal" way:
let o = new Object();
For arrays you can do:
let a = [];
instead of:
let a = new Array();
So you can skip the class-like stuff and create an instance (object) immediately. Here's the same functionality as described in the previous examples, but using object literal syntax this time:
let car = {
type: "diesel",
color: "red",
getInfo: function () {
return this.color + ' ' + this.type + ' car';
}
}
In this case you don't need to (and cannot) create an instance of the class, it already exists. So you simply start using this instance.
car.color = "reddish";
alert(car.getInfo());
let car = new function() {
this.type = "diesel";
this.color = "red";
this.getInfo = function () {
return this.color + ' ' + this.type + ' car';
};
}