Test if an object is a plain object Test if an object is a plain object, i.e. is constructed by the built-in Object constructor and inherits directly from Object.prototype or null.
https://github.com/lodash/lodash/blob/master/isPlainObject.js
Test if an object is a plain object Test if an object is a plain object, i.e. is constructed by the built-in Object constructor and inherits directly from Object.prototype or null.