Object.isObject(object) : Test if a JS Object is an Object

isObject.js

Object.defineProperty(Object.prototype, 'isObject', {
  /**
   * @param {*} item to be tested
   * @returns {Boolean} true if the item is an JS Object
   */
  value: (item) => { return (item && typeof item === 'object' && !Array.isArray(item)) }
})

/**
 * Examples:
 * Object.isObject({}) -> true
 * Object.isObject(null) -> false
 * Object.isObject('string') -> false
 */