what is constructor in javascript class code example
Example 1: javascript class constructor
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
}
const person = new Person("John Doe", 23);
console.log(person.name);
Example 2: javascript class constructor
class Cat {
constructor(name, age) {
this.name = name;
this.age = age;
}
get fullname() {
return this.getFullName()
}
getFullName() {
return this.name + ' ' + this.age
}
}
const run = document.getElementById("run");
run.addEventListener("click", function () {
let Skitty = new Cat('Skitty', 9);
let Pixel = new Cat('Pixel', 6);
console.log(Skitty.getFullName());
console.log(Skitty.fullname);
console.log(Skitty, Pixel);
})
Example 3: what is constructor in java
A constructor is a special method used to initialize objects in java.
we use constructors to initialize all variables in the class
when an object is created. As and when an object
is created it is initialized automatically with the help of
constructor in java.
We have two types of constructors:
Default Constructor
Parameterized Constructor
public classname(){
}
public classname(parameters list){
}