Get name of function in typescript

Question

I was looking for a way to get name of function passing in parameter

console.clear();
class A{
   test(){


   }
   testCall(fnc:Function){
     console.log(fnc.name); // i want it display test here not empty
     console.log(fnc);

   }
}

var a=new A();
a.testCall(a.test);

you can check this in jsbin http://jsbin.com/loluhu/edit?js,console

Have a look at this stackoverflow.com/questions/332422/… It explains that although there is no real reflection in javascript, you can still use some workarounds but they are not very robust. — zoubida13
– zoubida13, Commented May 20, 2016 at 8:34
Possible duplicate of Get name as String from a Javascript function reference? — Starfish
– Starfish, Commented May 20, 2016 at 8:35
Possible duplicate of TypeScript not providing function name — Alex
– Alex, Commented May 20, 2016 at 9:16

Community · Accepted Answer · 2017-05-23 12:13:52Z

3

I found this is a bug in typescript

you can find solution here TypeScript not providing function name

edited May 23, 2017 at 12:13

CommunityBot

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answered May 20, 2016 at 8:52

Mr.Trieu

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Comments

Beevik · Accepted Answer · 2016-11-02 00:48:05Z

2

You can extend the Function interface as follows:

interface Function {
    name: string;
}

function foo() {}
alert(foo.name);

See here for a fuller explanation.

answered Nov 2, 2016 at 0:48

Beevik

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