[英]Get keys of union of objects in TypeScript
Is there a way to get all keys of type union type of objects { a: ...} | { b: ...}
有没有办法获取对象的所有类型联合类型的键{ a: ...} | { b: ...}
{ a: ...} | { b: ...}
? { a: ...} | { b: ...}
? One thing worth mention — this type is generated dynamically.值得一提的是——这种类型是动态生成的。
Spent a few hours but without any luck...花了几个小时但没有任何运气......
Conditional types follow the distributive law .条件类型遵循分配律。
Something along these lines (or at least a start)这些方面的东西(或至少是一个开始)
type Keys<T> = T extends {[key: string]: any} ? keyof T : never
type Test = Keys<{a: string} | {b: number} | {c: object}>
//type Test = "a" | "b" | "c"
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