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isPlainObject

Check if a value is a plain JavaScript object (not array, null, etc).

#data #type-guard #utility 
export const isPlainObject = (value: unknown): value is Record<string, unknown> =>
  Object.prototype.toString.call(value) === '[object Object]';


// Usage
isPlainObject({});        // true
isPlainObject({ a: 1 });  // true
isPlainObject([]);        // false
isPlainObject(null);      // false
isPlainObject(new Date);  // false

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