[Exam Problems] JavaScript Basics Exam - 24 November 2014 -

var arr = ["level^courses",
    "{\"id\":0,\"firstname\":\"Angel\",\"lastname\":\"Ivanov\",\"town\":\"Plovdiv\",\"role\":\"student\",\"grades\":[\"5.89\"],\"level\":2,\"certificate\":false}",
    "{\"id\":1,\"firstname\":\"Mitko\",\"lastname\":\"Nakova\",\"town\":\"Dimitrovgrad\",\"role\":\"trainer\",\"courses\":[\"PHP\",\"Unity Basics\"],\"lecturesPerDay\":6}",
    "{\"id\":2,\"firstname\":\"Bobi\",\"lastname\":\"Georgiev\",\"town\":\"Varna\",\"role\":\"student\",\"grades\":[\"5.59\",\"3.50\",\"4.54\",\"5.05\",\"3.45\"],\"level\":4,\"certificate\":false}",
    "{\"id\":3,\"firstname\":\"Ivan\",\"lastname\":\"Ivanova\",\"town\":\"Vidin\",\"role\":\"trainer\",\"courses\":[\"JS\",\"Java\",\"JS OOP\",\"Database\",\"OOP\",\"C#\"],\"lecturesPerDay\":7}",
    "{\"id\":4,\"firstname\":\"Mitko\",\"lastname\":\"Petrova\",\"town\":\"Sofia\",\"role\":\"trainer\",\"courses\":[\"Database\",\"JS Apps\",\"Java\"],\"lecturesPerDay\":2}"
]
mess(arr)

function mess (input) {

    var result = {students:[], trainers:[]}

    for (var i = 1; i < input.length; i++) {
        var line = {}
        line = JSON.parse(input[i])
//        console.log(line)
        if (line['role']=='student'){
            result.students.push(line)
        }
        else if (line['role']=='trainer'){
            result.trainers.push(line)
        }
    }
    console.log(result)
}