Object Composition

class Developer {

constructor(name) {

this.name = name;

}

commitChange() {

console.log(`${this.name} is committing changes`);

}

}

function canBuildUI(developer) {

return {

buildUI: () => {

console.log(`${developer.name} is building UI...`);

}

}

}

function canBuildAPI(developer) {

return {

buildAPI : () => {

console.log(`${developer.name} is building API...`);

}

}

}

function canDeployApp(developer) {

return {

deployApp : () => {

console.log(`${developer.name} is deploying app...`);

}

}

}

function createFrontEndDeveloper(name) {

const developer = new Developer(name); //Membuat variabel developer mengembalikan nilai objek dengan argumen name yang nilainya diambil dari argumen createFrontEndDeveloper

return Object.assign(developer, canBuildUI(developer)); //mengkomposisikan kemampuan" akan dikirim ke canBuildUI(developer)

}

function createBackEndDeveloper(name) {

const developer = new Developer(name);

return Object.assign(developer, canBuildAPI(developer));

}

function createDevOps(name) {

const developer = new Developer(name);

return Object.assign(developer, canDeployApp(developer));

}

function createFullStackDeveloper(name) {

const developer = new Developer(name);

return Object.assign(developer, canBuildUI(developer), canBuildAPI(developer), canDeployApp(developer));

}

//Untuk pemanggilan harus variabel.function yang akan dipanggil();

const frontEndDeveloper = createFrontEndDeveloper('Fulan');

frontEndDeveloper.commitChange();

frontEndDeveloper.buildUI();

console.log(`is ${frontEndDeveloper.name} developer ?`, frontEndDeveloper instanceof Developer);

const backEndDeveloper = createBackEndDeveloper('Fulana');

backEndDeveloper.commitChange();

backEndDeveloper.buildAPI();

console.log(`is ${backEndDeveloper.name} developer ?`, backEndDeveloper instanceof Developer);

const devOps = createDevOps('Fulani');

devOps.commitChange();

devOps.deployApp();

console.log(`is ${devOps.name} developer ?`, devOps instanceof Developer);

const fullStackDeveloper = createFullStackDeveloper('Fulanah');

fullStackDeveloper.commitChange();

fullStackDeveloper.buildUI();

fullStackDeveloper.buildAPI();

fullStackDeveloper.deployApp();

console.log(`is ${fullStackDeveloper.name} developer ?`, fullStackDeveloper instanceof Developer);