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30-seconds-of-code/snippets/is-plain-object.md
2023-04-28 22:29:23 +03:00

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title, type, tags, cover, dateModified
title type tags cover dateModified
Value is plain object snippet
type
object
yellow-white-mug-1 2020-10-20T23:02:01+03:00

Checks if the provided value is an object created by the Object constructor.

  • Check if the provided value is truthy.
  • Use typeof to check if it is an object and Object.prototype.constructor to make sure the constructor is equal to Object.
const isPlainObject = val =>
  !!val && typeof val === 'object' && val.constructor === Object;
isPlainObject({ a: 1 }); // true
isPlainObject(new Map()); // false