getNumber
Gets value at the given index as a Number. Returns null if the value doesn't exist, or its value is not a Number.
Return
the Number or nil.
Parameters
index
the index. This value must not exceed the bounds of the array.
Gets value at the given index as a Number. Returns null if the value doesn't exist, or its value is not a Number.
the Number or nil.
the index. This value must not exceed the bounds of the array.