Typescript 如何将字符串转换为枚举和类型？

这个问题可能看起来很相似，但我的情况有点复杂。我有两个不同的枚举和另一个总和类型：

enum InteractiveStep {
    Pick = 'PICK',
    Ban = 'BAN'
}

enum AutoStep {
    RandomPick = 'RANDOM_PICK',
    LastPick = 'LAST_PICK'
}

type ActionStep = InteractiveStep | AutoStep

如何检查

ActionStep

类型中是否包含任意字符串，并安全地将其转换？

使用，我可以得出以下结论：

enum InteractiveStep {
    Pick = 'PICK',
    Ban = 'BAN'
}

enum AutoStep {
    RandomPick = 'RANDOM_PICK',
    LastPick = 'LAST_PICK'
}

type ActionStep = InteractiveStep | AutoStep
const ActionStep = {...InteractiveStep, ...AutoStep}

const inputString: string = 'RANDOM_PICK'

const inputStep: ActionStep = ActionStep[inputString as keyof typeof ActionStep];

通过使用，我能够得出以下结论：

enum InteractiveStep {
    Pick = 'PICK',
    Ban = 'BAN'
}

enum AutoStep {
    RandomPick = 'RANDOM_PICK',
    LastPick = 'LAST_PICK'
}

type ActionStep = InteractiveStep | AutoStep
const ActionStep = {...InteractiveStep, ...AutoStep}

const inputString: string = 'RANDOM_PICK'

const inputStep: ActionStep = ActionStep[inputString as keyof typeof ActionStep];