Sample Code Inaccurate about prague HOT 3 CLOSED

It feels hopelessly naive of you two to expect the sample code to actually work. Wake up and smell the coffee.

from prague.

I'll update the README shortly, but here's the correct code:

const fullName = first(
    (t: string) => t === "Bill" ? "Bill Barnes" : undefined,
    t => t === "Hao" ? "Hao Luo" : undefined,
    t => t === "Kevin" ? "Kevin Leung" : undefined,
);

In the real world I'd probably introduce a helper, e.g.

const getFullName = (
    name: string,
    fullName: string
) => (t: string) => t === name ? fullName : undefined;

const fullName = first(
    getFullName("Bill", "Bill Barnes"),
    getFullName("Hao", "Hao Luo"),
    getFullName("Kevin", "Kevin Leung"),
);

... but that probably would make the samples less clear.

from prague.

In the sample code, any unmatched string will return false (not undefined).

The first function still deems it as a "match" since it's not undefined, and returns the value (which is false).

from prague.