如何使用条件接口或在打字稿中同时使用它们 [英] How to use the conditional interfaces or to have both of them in typescript

问题描述

我是 typescript 的新手.在这里，我有两个界面

I am new to the typescript. Here i have two inerfaces

interface TestProduct {
  Id: string
  active: boolean
}

interface Product {
  Id?: string
  Name?: string
  Original: TestProduct
}

interface MainProduct {
  Id?: string
  Name?: string
  Original?: Product
}

在这里，所以，我试图同时拥有两个值，

Here , So, I am trying to have both the values like,

type Total = MainProduct | Product

现在，当我在一种函数方法中使用它时，

Now, When I used this in one of my function methods ,

getproducts = memoize(
    (products: Array<Product>, isopen) => {
    //did some group by and got one array of object.

   const groupedValues = !isopen  ?  _.groupBy(
    products,
    (bsp: Product) => bsp?.Original?.active?.Name ?? 'Undefined'
  ) :  _.groupBy(
    buyingSessionProducts,
    (bsp: MainProduct) => bsp?.Original?.Original?.active?.Name ?? 'Undefined'
  )


   for (let value in groupedValues) {
    const sort = groupedValues[value][0].original?. //here I am able to get only Id value as it is common in both the interface. So, I am not getting either original?.active or direct original?.original?.active.
}
})

因此，如何获得两个接口键值.谢谢.

So, How do I get both intefaces key values over their. thanks.

推荐答案

尝试为每种类型设置单独的条件流.

Try to have separate conditional flow for each type.

getproducts = memoize(
(products: Array<Product>, isopen) => {
  //did some group by and got one array of object.

  if(!isopen) {
      const groupedProductValues = _.groupBy(
        products,
        (bsp: Product) => bsp?.Original?.active?.Name ?? 'Undefined'
      )

      for (let value in groupedValues) {
          // Here value is of type Product
      }
  } else {
      const groupedMainProductValues = _.groupBy(
          buyingSessionProducts,
          (bsp: MainProduct) => bsp?.Original?.Original?.active?.Name ?? 'Undefined'
      )

      for (let value in groupedValues) {
          // Here value is of type MainProduct
      }
  }
})

您可以从两个 for 循环中提取通用逻辑，并将其转换为一个单独的函数，并在必要时调用

You can extract common logic from both for loops int a separate function and invoke it if necessary

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