Method definitions

const obj = {
  get property() {},
  set property(value) {},
  property( parameters… ) {},
  *generator( parameters… ) {},
  async property( parameters… ) {},
  async* generator( parameters… ) {},

  //  with computed keys
  get [property]() {},
  set [property](value) {},
  [property]( parameters… ) {},
  *[generator]( parameters… ) {},
  async [property]( parameters… ) {},
  async* [generator]( parameters… ) {},
};

const obj = {
  foo: function() {
    // ...
  },
  bar: function() {
    // ...
  }
}

const obj = {
  foo() {
    // ...
  },
  bar() {
    // ...
  }
}

// Using a named property
const obj2 = {
  g: function* () {
    let index = 0
    while (true) {
      yield index++
    }
  }
};

// The same object using shorthand syntax
const obj2 = {
  * g() {
    let index = 0
    while (true) {
      yield index++
    }
  }
};

const it = obj2.g()
console.log(it.next().value)  // 0
console.log(it.next().value)  // 1

// Using a named property
const obj3 = {
  f: async function () {
    await some_promise
  }
}

// The same object using shorthand syntax
const obj3 = {
  async f() {
    await some_promise
  }
}

const obj4 = {
  f: async function* () {
    yield 1
    yield 2
    yield 3
  }
};

// The same object using shorthand syntax
const obj4 = {
  async* f() {
   yield 1
   yield 2
   yield 3
  }
}

const objA = {
  method() {}
}
new objA.method  // TypeError: obj.method is not a constructor

const objB = {
  * g() {}
}
new objB.g       // TypeError: obj.g is not a constructor (changed in ES2016)

const obj = {
  a: 'foo',
  b() { return this.a }
};
console.log(obj.b())  // "foo"

const bar = {
  foo0: function() { return 0 },
  foo1() { return 1 },
  ['foo' + 2]() { return 2 }
}

console.log(bar.foo0())  // 0
console.log(bar.foo1())  // 1
console.log(bar.foo2())  // 2

// A global function
function foo() {
  return 1
}

let name = 'foo'
console.log(window[name]())  // 1