RequireOnlyOne

[alita-moore]

Not sure how to do this right now, but is there a type already available for doing the same thing as RequireAtLeastOne but instead for RequireOnlyOne? I'm running into a problem where I want to require a partial object with only one member. Is there any easy way to do this or is this a type you think would be useful/

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[darcyparker]

See draft: #287

export type OneOrMore<T> = [T, ...T[]]; // NOrMore<T, 1>

If you want to require exactly one: type RequireOnlyOne<T> = [T] (Not sure you need a type for this...)

[alita-moore]

ncie

[sindresorhus]

If you want to require exactly one: type RequireOnlyOne = [T] (Not sure you need a type for this...)

I think we should document that as a tip in the readme.

[sindresorhus]

Why are you closing? This is not resolved.

[alita-moore]

I closed due to the fact this is included in darcy's draft #287

[tommy-mitchell]

RequireExactlyOne?