TypeScript中枚举名称的`keyof`

// 定义一个枚举
enum Color {
  Red,
  Green,
  Blue
}

// 使用 keyof 获取枚举的所有键
type ColorKeys = keyof typeof Color; // "Red" | "Green" | "Blue"

// 示例：使用枚举和 keyof
function getColorName(color: Color): string {
  switch (color) {
    case Color.Red:
      return "红色";
    case Color.Green:
      return "绿色";
    case Color.Blue:
      return "蓝色";
    default:
      return "未知颜色";
  }
}

console.log(getColorName(Color.Red)); // 输出: 红色

enum Color {
  Red,
  Green,
  Blue
}

type ColorType = typeof Color; // Color

enum Color {
  Red = "red",
  Green = "green",
  Blue = "blue"
}

type ColorString = Color["Red" | "Green" | "Blue"]; // "red" | "green" | "blue"