Typescript array of functions and call

Question

I trying to call a a function inside a array. I get an error message : The expression type { function } is not assignable to boolean.

Declaration:

    public conditions: { (value: any): bool; }[] = [];

Usage:

    var myBool: bool = conditions["myKey"]("someParam");

Whats wrong here ? Do i need to cast here ?

Which version of typescript are you using? They changed several things since release and I am asking, because var conditions: { (value: any): bool; }[] = []; var myBool: bool = conditions["myKey"]("someParam"); compiles fine for me. — Kevkong
– Kevkong, Commented Mar 27, 2013 at 15:36
0.8.3 using Webstorm 6 (its more restricted, what is not bad at all) — MR.ABC
– MR.ABC, Commented Mar 27, 2013 at 15:37
interesting, I am using an older version (0.8.1.1) with visual studio ... will upgrade to 0.8.3 to test it. — Kevkong
– Kevkong, Commented Mar 27, 2013 at 15:43

Ryan Cavanaugh · Accepted Answer · 2013-03-27 16:37:28Z

1

This works in the TypeScript playground, which uses 0.8.3. Are you sure this is actually the code in question? Indexing an array by a string produces a value of type any, so the function invocation there is sort of irrelevant for type purposes since it will just produce an any as well.

answered Mar 27, 2013 at 16:37

Ryan Cavanaugh

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