function __TS__ArrayReduce(arr, callbackFn, ...)
    local len = #arr
    local k = 0
    local accumulator = nil
    if select("#", ...) ~= 0 then
        accumulator = select(1, ...)
    elseif len > 0 then
        accumulator = arr[1]
        k = 1
    else
        error("Reduce of empty array with no initial value", 0)
    end
    for i = k, len - 1 do
        accumulator = callbackFn(_G, accumulator, arr[i + 1], i, arr)
    end
    return accumulator
end