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

Just adjust the length property after pushing.

function add(x) {
    a.unshift(x);
    a.length = a.length < 7 ? a.length : 7;
}

The cleanes way is to check before

function add(x) {
    a.unshift(x);
    if (a.length > 7) {
        a.length = 7;
    }
}