JS 4 OOP Pillars
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//Encapsulation
//Inheritance
class Mail {
constructor(author) {
this.from = author;
this._contacts = [];
}
sendMessage(msg, to) {
console.log(`you send: ${msg} to ${to} from ${this.from}`);
this._contacts.push(to);
}
showAllContacts() {
return this._contacts;
}
}
class WhatsApp extends Mail {
constructor(author) {
super(author);
this.username = 'dicoding';
this.isBussinessAccount = true;
}
myProfile() {
return `my name ${this.username}, is ${this.isBussinessAccount ? 'Business' : 'Personal'}`;
}
}
const wa1 = new WhatsApp('080111000222');
console.log(wa1.myProfile());
JavaScript
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