An object is plain if it's created by either `{}`, `new Object()`, or `Object.create(null)`.
## Install
```
$ npm install is-plain-obj
```
## Usage
```js
const isPlainObject = require('is-plain-obj');
isPlainObject({foo: 'bar'});
//=> true
isPlainObject(new Object());
//=> true
isPlainObject(Object.create(null));
//=> true
isPlainObject([1, 2, 3]);
//=> false
class Unicorn {}
isPlainObject(new Unicorn());
//=> false
```
## Related
- [is-obj](https://github.com/sindresorhus/is-obj) - Check if a value is an object
- [is](https://github.com/sindresorhus/is) - Type check values
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