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is-what

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JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.

github.com/mesqueeb/is-what

mesqueeb/is-what

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/** Returns whether the payload is literally the value `NaN` (it's `NaN` and also a `number`) */ export declare function isNaNValue(payload: unknown): payload is typeof NaN;