2.1.27 [ECMA-262/5] Section 15.4.4.19, Array.prototype.map ( callbackfn [ , thisArg ] )
V0028:
The specification states:
NOTE The map function is intentionally generic; it does not require that its this value be an Array object. Therefore it can be transferred to other kinds of objects for use as a method. Whether the map function can be applied successfully to a host object is implementation-dependent.
IE9 Mode, IE10 Mode, IE11 Mode, and EdgeHTML Mode (All Versions)
The map method can be applied to a host object; however, some host objects may reject such an application.