heart delivery1 mid exam - fundamentals

function foo(arr) {
    arr = arr.filter(x => x !== "")
    let  field = arr.shift().split("@").map(Number)
    arr.pop()
    arr = arr.map(x => x.split(" ")[1]).map(Number)
    let currentIndex = 0

    for (let i = 0; i < arr.length; i++) {
        if (currentIndex + arr[i] >= field.length) {
            currentIndex = 0
        } else {
            currentIndex += arr[i]
        }

        if (field[currentIndex] === 0) {
            console.log(`Place ${currentIndex} already had Valentine's day.`)
            continue
        }
        field[currentIndex] -= 2
        if (field[currentIndex] === 0) {
            console.log(`Place ${currentIndex} has Valentine's day.`)
        }
    }

    console.log(`Cupid's last position was ${currentIndex}.`)
    field.every(x => x === 0)
        ? console.log(`Mission was successful.`)
        : console.log(
            `Cupid has failed ${field.filter(x => x !== 0).length} places.`
        )
}

foo(['2@4@2', 'Jump 2', 'Jump 2', 'Jump 8', 'Jump 3', 'Jump 1', 'Love!'])