Hi,

Thank you for answer me.

I already tried like you sugeriment before, but it is not ok. it is not ok on Judge.  Did you try on Judje?

Elena

Absolutely, no problems with judge after implementing changes in your solution:

function washMashine(arr) {
    let detergent = 750;
    let detergentForDish = 5;
    let detergentForPot = 15;

    let detergentQuantity = Number(arr[0]);
    let index = 1;
    let circle = 0;
    let dishes = 0;
    let pots = 0;

    while (arr[index] !== "End") {
    // while (index < arr.length) {
        if (index === arr.length) {
        // if (arr[index] === "End") {
            break;
        }

        // circle += 1;

        // if (circle % 3 !== 0) {
        if (index % 3 !== 0) {
            dishes += Number(arr[index]);
        }

        // if (circle % 3 === 0) {
        if (index % 3 === 0) {
            pots += Number(arr[index]);
        }
        index++;
    }

    let total = (dishes * detergentForDish) + (pots * detergentForPot);
    let totalDetergent = detergent * detergentQuantity;

    if (totalDetergent >= total) {
        console.log(`Detergent was enough!`);
        console.log(`${dishes} dishes and ${pots} pots were washed.`);
        console.log(`Leftover detergent ${totalDetergent - total} ml.`)
    } else {
        console.log(`Not enough detergent, ${Math.abs(total - totalDetergent)} ml. more necessary!`)
    }
}

Best,

Thank you!

Best

I saw my mistake!

When I wrot  

     // this is correct    if( index < arr.length) {

            break;

        }

but I was wrote 

if( arr[index[  < arr.length) {

            break;

        }