Read array values in a loop in JavaScript

Question

I have an array in JavaScript that have defined these values:

var myStringArray = [\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\",\"10\"];

Answer 1

You could take a function which slices three elements and if not possible, it takes the needed first values of the array as well.

function take3() {
    var temp = array.slice(index, index += 3)
    index %= array.length;
    console.log(temp.concat(temp.length < 3 ? array.slice(0, index) : []).join(' '));
}

var array = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"],
    index = 0;

take 3

With a mapping of a dynamic count.

function take(length) {
    console.log(Array.from({ length }, _ => array[++index, index %= array.length]));
}

var array = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"],
    index = -1;

take 3