在 typescript 中为 object 指定类型的问题

Question

I have an set of data for which I need to specify type in typescript (type any is not recommended). 'xyzzy': (2) [Array(4), 1],

I get error when i specify its type as object. Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'. No index signature with a parameter of type 'string' was found on type '{}'.

Answer 1

You can specify new type with type keyword;

type MyType = {
  xyzzy: [number[], number],
  abs: [number[], number]
}

And then use this declaration

const something: MyType = {
  xyzzy: [[0, 1, 2, 3], 1],
  abs: [[0, 1, 2, 3], 0],
}