“enum в javascript es6” Ответ

JS Enum

const daysEnum = Object.freeze({
  monday: 0,
  tuesday: 1,
  wednesday: 2,
  thursday: 3,
  friday: 4,
  saturday: 5,
  sunday: 6
});
Grumpy Guanaco

JavaScript enum

const seasons = {
  SUMMER: {
    BEGINNING: "summer.beginning",
    ENDING: "summer.ending"
  },
  WINTER: "winter",
  SPRING: "spring",
  AUTUMN: "autumn"
};

let season = seasons.SUMMER.BEGINNING;

if (!season) {
  throw new Error("Season is not defined");
}

switch (season) {
  case seasons.SUMMER.BEGINNING:
  // Do something for summer beginning
  case seasons.SUMMER.ENDING:
  // Do something for summer ending
  case seasons.SUMMER:
  // This will work if season = seasons.SUMMER
  // Do something for summer (generic)
  case seasons.WINTER:
  //Do something for winter
  case seasons.SPRING:
  //Do something for spring
  case seasons.AUTUMN:
  //Do something for autumn
}
Muddy Monkey

enum javascript

const DaysEnum = {"monday":1, "tuesday":2, "wednesday":3, ...}
Object.freeze(DaysEnum)
SteezCram

enum в javascript es6

const daysEnum = Object.freeze({
  monday: Symbol(0),
  tuesday: Symbol(1),
  wednesday: Symbol(2),
  thursday: Symbol(3),
  friday: Symbol(4),
  saturday: Symbol(5),
  sunday: Symbol(6)
});
Kind Kingfisher

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