How to import `NodeJS.Timer` type in react-native

Question

I want to use the type NodeJS.Timer as a type annotation in one of my classes:

const interval: NodeJS.Timer = setInterval(this._func, 1000)

How can I import this type? I am using flow.

Possible duplicate of Cannot find namespace NodeJS when using NodeJS.Timer in Ionic 2 — hlovdal
– hlovdal, Commented Apr 6, 2018 at 12:09
@hlovdal this answer is for typescript, no? Will it work for flow? — daramasala
– daramasala, Commented Apr 8, 2018 at 7:20
Ah, yes for typescript. Sorry I did not see this was something different. — hlovdal
– hlovdal, Commented Apr 8, 2018 at 11:27

James Kraus · Accepted Answer · 2018-05-08 21:59:16Z

1

Flow uses the IntervalID type as the return type from the setInterval/setTimeout functions. You can see the function typedef here in the core defs.

To use it, just type interval with that type:

const interval: IntervalID = setInterval(this._func, 1000)

answered May 8, 2018 at 21:59

James Kraus

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