var vasya = {
  age: 21,
  name: 'Вася',
  surname: 'Петров'
};

var user = {
  isAdmin: false,
  isEmailConfirmed: true
};

var student = {
  university: 'My university'
};

// добавить к vasya свойства из user и student
copy(vasya, user, student);

alert( vasya.isAdmin ); // false
alert( vasya.university ); // My university

zip.createReader(new zip.BlobReader(document.querySelector('#file').files[0]), function (zipReader) {
// get all entries from the zip
            zipReader.getEntries(function (entries) {
                entries.forEach(function (entry) {
                    loa.map.push(entry);
                });