Build a function object with properties in TypeScript

Question

I want to create a function object, which also has some properties held on it. For example in JavaScript I would do:

var f = function() { }
f.someValue = 3;
         


        

Answer 1

This departs from strong typing, but you can do

var f: any = function() { }
f.someValue = 3;

if you are trying to get around oppressive strong typing like I was when I found this question. Sadly this is a case TypeScript fails on perfectly valid JavaScript so you have to you tell TypeScript to back off.

"You JavaScript is perfectly valid TypeScript" evaluates to false. (Note: using 0.95)