Graduation

function graduation(input) {

    let index = 0;
    let name = input[index];
    index++;

    let badGrade = 0;
    let sum = 0;
    let i = 1;

    let isExcluded = false;
    while (i <= 12) {
        let grade = Number(input[index]);
        index++;

        if (grade < 4.00) {
            badGrade++;

            if (badGrade > 1) {
                isExcluded = true;
                console.log(`${name} has been excluded at ${i} grade`);
                break;
            }
            continue;
        }

        sum += grade;
        i++;
    }

    if (!isExcluded) {
        let averageGrade = sum / 12;
        console.log(`${name} graduated. Average grade: ${averageGrade.toFixed(2)}`);
    }

}

graduation(["Gosho", "5", "5.5", "6", "5.43", "5.5", "6", "5.55", "5", "6", "6", "5.43", "5"])