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is-what

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

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/** * A factory function that creates a function to check if the payload is one of the given types. * * @example * import { isOneOf, isNull, isUndefined } from 'is-what' * * const isNullOrUndefined = isOneOf(isNull, isUndefined) * * isNullOrUndefined(null) // true * isNullOrUndefined(undefined) // true * isNullOrUndefined(123) // false */ export function isOneOf(a, b, c, d, e) { return (value) => a(value) || b(value) || (!!c && c(value)) || (!!d && d(value)) || (!!e && e(value)); }