2.1.64 [ECMA-262-1999] Section 15.4.2.1, new Array ( [ item0 [ , item1 [ , … ] ] ] )

V0098:

The 0 property of the newly constructed object is set to item0 (if supplied); the 1 property of the newly constructed object is set to item1 (if supplied); and, in general, for as many arguments as there are, the k property of the newly constructed object is set to argument k, where the first argument is considered to be argument number 0. __If the value of an argument item is undefined, an own property of the newly constructed object corresponding to that argument is not created.__