18 lines
490 B
Markdown
18 lines
490 B
Markdown
---
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title: isPlainObject
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tags: type,object,intermediate
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---
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Checks if the provided value is an object created by the Object constructor.
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- 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`.
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```js
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const isPlainObject = val => !!val && typeof val === 'object' && val.constructor === Object;
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```
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```js
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isPlainObject({ a: 1 }); // true
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isPlainObject(new Map()); // false
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```
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