type T0 = {
a: string
b: string
}
type T1 = Omit<T0, 'b'>
function func({ param }: { param: T0 | T1 }) {
if (param.hasOwnProperty('b')) { /* reassign type */ }
return param.b
}
Is it possible to change the type of param from T0 | T1 to T0?
In my opinion, it would be beneficial to simplify by utilizing optional "b" and only one type declaration.
type Example = {x:string, y:?string }
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