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Falsy #30

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felixfbecker opened this issue Sep 5, 2018 · 3 comments
Open

Falsy #30

felixfbecker opened this issue Sep 5, 2018 · 3 comments

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@felixfbecker
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export type Falsy = false | null | undefined | 0 | ''

export const isTruthy = <T>(val: T): val is Exclude<T, Falsy> => !!val
@pelotom
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pelotom commented Sep 5, 2018

The Falsy type is an interesting idea which I'd consider including, but the isTruthy function would represent a departure from the stated goals of this library, which is to be a set of purely static type operators with no runtime component.

@felixfbecker
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Yeah that was just a usage example.

@pelotom
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pelotom commented Sep 6, 2018

Ok, would you like to submit a PR?

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@pelotom @felixfbecker