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Improve plainObject() #169

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Jun 21, 2022
Merged

Improve plainObject() #169

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4 changes: 2 additions & 2 deletions source/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -286,14 +286,14 @@ is.safeInteger = (value: unknown): value is number => Number.isSafeInteger(value

is.plainObject = <Value = unknown>(value: unknown): value is Record<PropertyKey, Value> => {
// From: https://github.com/sindresorhus/is-plain-obj/blob/main/index.js
if (toString.call(value) !== '[object Object]') {
if (typeof value !== 'object' || value === null) {
return false;
}

// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
const prototype = Object.getPrototypeOf(value);

return prototype === null || prototype === Object.getPrototypeOf({});
return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in value) && !(Symbol.iterator in value);
};

is.typedArray = (value: unknown): value is TypedArray => isTypedArrayName(getObjectType(value));
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