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FailurMan opened this issue 2 years ago · comments
//如果是正确就返回第二个,如果错误则返回第三个 type If<U extends Boolean, K extends any , T extends any> = U extends true ? K : T type A = If<true, 'a', 'b'> // expected to be 'a' type B = If<false, 'a', 'b'> // expected to be 'b'