Typescript: Arrow functions should not have a 'prototype' property

Created on 21 Jan 2015  ·  3Comments  ·  Source: microsoft/TypeScript 
function f() {
    var a = () => 5;
    return a.prototype;
}

We should give an error here.

Won't Fix
Source
picture DanielRosenwasser

Most helpful comment

No one else has noticed in 4 years

picture RyanCavanaugh on 11 Mar 2019
😄3 😕1

All 3 comments

I think we have no way to do this? The apparent type of a callable type includes the members from the global type Function and we can't really remove prototype from that declaration.

RyanCavanaugh picture RyanCavanaugh on 21 Jan 2015

The only way would be to have lambda functions have a different apparent type from regular functions.

mhegazy picture mhegazy on 21 Jan 2015

No one else has noticed in 4 years

RyanCavanaugh picture RyanCavanaugh on 11 Mar 2019
😄3 😕1
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