是否有扩展@ types / node / index.d.ts的好方法

Question

process._getActiveHandles() produces an error because not everything was published in @type/nodes/index.d.ts . I have node v8.11.1 and I used npm install @types/node@9.6.2 . Should I stop using npm's @types and edit my own copy?

The @types/node@12.7.5 does not have it in globals.d.ts either.

(<any>process)._getActiveHandles() of course ignores the error, but I don't want to lose the typo-checking.

_getActiveHandles() is just one case.

Answer 1

You should be able to add custom types to the existing node types. With something like:

declare global {
  namespace NodeJS {
    interface Process {
      _getActiveHandles(arg: number): boolean;
    }
  }
}

process._getActiveHandles = (arg) => !!arg;
const result = process._getActiveHandles(1)
console.log(result)

Answer 2

Thanks skovy. (I could not get code into the comment.)

Placing this in a separate ts file allowed access to the existing function without complaints from both tsc and Visual Code (although tsc might never have complained???):

declare global {
    namespace NodeJS {
        interface Process {
            _getActiveHandles(): any[];
        }
    }
}