Javascript Increase max array size [duplicate]

Answer 1

Arrays can't be that big, the maximum length is 2³²-1. According to ECMAScript spec,

Every Array object has a length property whose value is always a nonnegative integer less than 2³².

A String property name P is an array index if and only if ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal to 2³²−1.