Typescript doesn't have a function type? [duplicate]

Question

I need to clone an already existing javascript code into Typescript. The javascript is :

object.getsomething( function(err, result) {
    // async
});

How can I type the parameter function(err,result) ?

I tried retrieve(func: function(err:string, result:string) : any){}

but the my intellisense says "err" and "result" name can't be found. And I can't find any documentation about the "function" type.

Sam Herrmann · Accepted Answer · 2020-06-02 17:17:38Z

6

You can use the "fat arrow" notation as follows:

retrieve(func: (err: string, result: string) => any) { ... }

answered Jun 2, 2020 at 17:17

Sam Herrmann

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1 Comment

upvoting this correct answer, although the question is probably a duplicate.