使用 JS 应该怎么更好的定义枚举值？

const Color = {
  RED: 'red',
  GREEN: 'green',
  BLUE: 'blue'
};

const Color = ['red', 'green', 'blue'];

class Color {
  static RED = 'red';
  static GREEN = 'green';
  static BLUE = 'blue';
}

const Color = {
  RED: Symbol('red'),
  GREEN: Symbol('green'),
  BLUE: Symbol('blue')
};

enum Color {
  RED = 'red',
  GREEN = 'green',
  BLUE = 'blue'
}