JS SoftUni 06. Bomb Numbers

function bombNumbers(sequence, bomb) {
    let specialNumber = bomb[0];
    let bombPower = bomb[1];

    while (sequence.includes(specialNumber)) {
        let index = sequence.indexOf(specialNumber);
        let elementsToRemove = bombPower * 2 + 1;
        let startIndex = index - bombPower;

        if (startIndex < 0) {
            elementsToRemove += startIndex;
            startIndex = 0;
        }
        sequence.splice(startIndex, elementsToRemove);
    }
    console.log(sequence.reduce((a, b) => a + b, 0));
}