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

The fancy solution with generator functions:

function* cycle(arr) {
    let i=0;
    while (true) {
        yield arr[i++];
        i %= arr.length;
    }
}
function* chunksOf(n, iterable) {
    let chunk = [];
    for (const x of iterable) {
        chunk.push(x)
        if (chunk.length >= n) {
            yield chunk;
            chunk = [];
        }
    }
    if (chunk.length > 0)
        yield chunk;
}
function toFunction(iterator) {
    return () => iterator.next().value;
}
var myStringArray = ["1","2","3","4","5","6","7","8","9","10"];

const f = toFunction(chunksOf(3, cycle(myStringArray)));
console.log(f());
console.log(f());
console.log(f());
// …