create element javascript with class
// create div element by javascript with class
var div = document.createElement('div');
div.className = "div1";create element javascript with class
// create div element by javascript with class
var div = document.createElement('div');
div.className = "div1";how to create a class javascript
class Person {
constructor(name, age) {
this.name = name;
this.age = age;
}
displayInfo() {
return this.name + ' is' + this.age + " years old";
}
}
const Anthony = new Person('Anthony', 32);class javascript
class Polygon {
constructor(height, width) {
this.height = height;
this.width = width;
}
get area() {
return this.calcArea();
}
calcArea() {
return this.height * this.width;
}
}
const square = new Polygon(10, 10);
console.log(square.area);javascript create class
class Car {
constructor(brand) {
this.carname = brand;
}
}javascript class example
// to create a class named 'LoremIpsum':
class LoremIpsum {
// a function that will be called on each instance of the class
// the parameters are the ones passed in the instantiation
constructor(a, b, c) {
this.propertyA = a;
// you can define default values that way
this.propertyB = b || "a default value";
this.propertyC = c || "another default value";
}
// a function that can influence the object properties
someMethod (d) {
this.propertyA = this.propertyB;
this.propertyB = d;
}
}
// you can then call it
var loremIpsum = new LoremIpsum ("dolor", null, "sed");
// at this point:
// loremIpsum = { propertyA: 'dolor',
// propertyB: 'a default value',
// propertyC: 'sed' }
loremIpsum.someMethod("amit");
// at this point:
// loremIpsum = { propertyA: 'a default value',
// propertyB: 'amit',
// propertyC: 'sed' }
.javascript classes
let Person = class {
constructor(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
}Copyright © 2021 Codeinu
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