class FrontendDev {

  private name: string;
  private age: number;
  private technologies: string[]; // List of all Frameworks, languages, libraries and general knowledges
  private languages: { name: string, level: string }[]; // Languages that I speak
  private wishlist: string[]; 
 
  constructor(name: string, age: number, technologies: string[], languages: { name: string, level: string }[], wishlist: string[]) {
    this.name = name;
    this.age = age;
    this.technologies = technologies;
    this.languages = languages;
    this.wishlist = wishlist;
  }
 
  greet(): string {
    return `Hello, my name is ${ this.name } and I'm ${ this.age } years old`
  }
  
  
  myTechnologies(): string {   
    return `As a developer I have knowledge about those things: ${ this.technologies.join(', ') }`
  }
  
  myLanguages(): string {
    let answer: string[] = []
    this.languages.forEach((language: any) => {
      answer.push(`${ language.level } ${ language.name }`)
    })
    return `I can speak and write ${ answer.join(', ') }`
  }
  
  returnWishlist(): string {
    return `I wish to ${ this.wishlist.join(', ') }`
  }
}
 
let me = new FrontendDev(
  'Arthur Nassar',
  26,
  ['HTML', 'CSS', 'Bootstrap', 'SASS', 'Javascript', 'VueJS', 'Vue Router', 'Vuex', 'React', 'Redux', 'React Router', 'Typescript', 'MongoDB', 'NestJS', 'PHP'],
  [ { name: 'Portuguese', level: 'native' }, { name: 'English', level: 'advanced' }, { name: 'French', level: 'beginner' } ],
  [ 'Finish my ongoing React pathfinder project', 'Write an academic article about front-end technologies', 'Participate in a software development presencial event' ]
  );
  
  console.log(me.greet())
  // Hello, my name is Arthur Nassar and I`m 26 years old
  
  console.log(me.myTechnologies())
  // As a developer I have knowledge about those things: HTML, CSS, Bootstrap, SASS, Javascript, VueJS, Vue Router, Vuex, React, Redux, React Router, Typescript, MongoDB, NestJS, PHP
  
  console.log(me.myLanguages())
  // I can speak and write native Portuguese, advanced English, beginner French
  
  console.log(me.returnWishlist())
  // I wish to Finish my ongoing React pathfinder project, Write an academic article about front-end technologies, Participate in a software development presencial event