What is the best way here?

Question

Programming

Let's say there is a function area. This function is called once per second by a constant timer.
We need to "comb" a lot of arrays in this function. Here is the question: to use one common loop of the form:

for(var i = 0; i < MAX_LENGTH_OF_ARRAYS; i++)
{
    if(i < LENGTH_FIRST_ARRAY) // если i в области существования ячеек первого массива
    {
        // действие с массивом 1
    }
    else if(i < LENGTH_SECOND_ARRAY) // если i в области существования ячеек второго массива
    {
        // действие с массивом 2
    }
   // и так со всеми массивами
}

Or many cycles?

Answer 1

Well, given that the above option is not working at all and only the first array will be processed completely, it is better to have your own loop for each array.
In general, the overhead for a loop is not large, so each loop on its own array is not so scary.
And given that the code with one cycle is more difficult and worse to read, and even so much so that you have already made mistakes, it is better to have your own cycle for each array.
See how many arguments there are for this option - choose it.

Answer 2

How are arrays passed? So far, the winning option is - each array has its own cycle. What language?