declare a class in javascript code example
Example 1: javascript class
class ClassMates{
constructor(name,age){
this.name=name;
this.age=age;
}
displayInfo(){
return this.name + "is " + this.age + " years old!";
}
}
let classmate = new ClassMates("Mike Will",15);
classmate.displayInfo();
Example 2: javascript class
class Rectangle {
constructor(height, width) {
this.height = height;
this.width = width;
}
get area() {
return this.calcArea();
}
calcArea() {
return this.height * this.width;
}
}
const square = new Rectangle(10, 10);
console.log(square.area);
Example 3: javascript class example
class LoremIpsum {
constructor(a, b, c) {
this.propertyA = a;
this.propertyB = b || "a default value";
this.propertyC = c || "another default value";
}
someMethod (d) {
this.propertyA = this.propertyB;
this.propertyB = d;
}
}
var loremIpsum = new LoremIpsum ("dolor", null, "sed");
loremIpsum.someMethod("amit");
.