Omit

[linjunc]

实现 TS 中的 Omit 方法

interface Todo {
  title: string
  description: string
  completed: boolean
}

type MyOmit<T, K extends keyof T> = {
  [R in keyof T as R extends K ? never: R ]: T[R]
}

type TodoPreview = MyOmit<Todo, 'description' | 'title'>

[Aurora-GSW]

type MyPick<T, K extends keyof T> = {
    [p in K]:T[p]
}
//实现1
type MyOmit<T, K extends keyof any> = MyPick<T,Exclude<keyof T,K>>

//实现2
type MyOmit<T, K extends keyof any> = {
    [p in Exclude<keyof T,K>]:T[p]
}