typescript 类型断言问题

[yxcoder]

type TYPE1 {...}

type TYPE2 {...}

type TYPE3 {...}

type TYPE4 {...}

type ALL = TYPE1 | TYPE2 | TYPE3 | TYPE4

问： task 是 TYPE1 | TYPE2 | TYPE3 类型应该怎么表示？（排除 TYPE2 ），这里 ALL 可能有很多种类型，所以不想重新写一遍

[bi531334444]

Exclude

[Zhuzhuchenyan]

type A = {a: string};
type B = {b: string};
type C = {c: string};
type D = {d: string};

type All = A | B | C | D;
type AllButD = Exclude<All, D>;