Destructuring

// Destructuring Assignment
let a, b;
[a, b] = [100, 200];

// Rest Pattern
[a, b,  ...rest] = [100, 200, 300, 400, 500];

//console.log(rest);

({ a, b } = { a: 100, b: 200, c: 300, d: 400, e: 500 });
({ a, b, ...rest } = { a: 100, b: 200, c: 300, d: 400, e: 500 });

console.log(rest);

// Array Destructuring

const people = ['John', 'Beth', 'Mike']

/* const [person1, person2, person3] = people;

console.log(person1, person2, person3); */

// Parse array returned from function
function getPeople(){
    return ['John', 'Beth', 'Mike'];
}

let person1, person2, person3;
[person1, person2, person3] = getPeople();

// Object Destructuring
const person = {
    name: 'John Doe',
    age: 32,
    city: 'Miami',
    gender: 'Male',
    sayHello: function(){
        console.log('Hello ');
    }
}

// Old ES5

const name = person.name,
      age = person.age,
      city = person.city


// New ES6 Destructuring
const { name, age, city, sayHello } = person;

console.log(name, age, city)