dz-app/pages/voluntary/hooks/useVoluntaryMajorGroupIdentifier.js

export const useVoluntaryMajorGroupIdentifier = function (majorGroup) {
    if (!majorGroup || majorGroup.uniqueCode) return
    const ids = [majorGroup.collegeCode || majorGroup.recruitPlan?.collegeCode, majorGroup.jCode]
    majorGroup.uniqueCode = ids.join(':')
}