Limit array size

Question

Let\'s say I have an array with data elements, in this example numbers, like this:

var a = [432, 238, 122, 883, 983];

And I want to limit t

Answer 1

You can check the length of array when adding and Shift it (remove the first element) if the length has passed:

function add(x) {
    a.push(x);
    if (a.length > 7)
        a.shift();
}