* Checks if `value` is object-like. A value is object-like if it's not `null` * and has a `typeof` result of "object". * * @static

* Check whether the given variable is an instance of Array or not.<br> * If the given variable is an instance of Array, return true. * @param {*}

* Checks if `value` is a plain object, that is, an object created by the * `Object` constructor or one with a `[[Prototype]]` of `null`. *

* Make a map and return a function for checking if a key * is in that map.