bstaykov/array

## array
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Using Objects</title>
</head>
<body>
    <script>
        function exercise6() {
            // Exercise 06
            var persons = [{firstname: 'Gosho', lastname: 'Petrov', age: 24 }, { firstname: 'Ivan', lastname: 'Minov', age:21 },{ firstname: 'Ivan', lastname: 'Petrov',  age: 22  }, {  firstname: 'Bay', lastname: 'Ivan', age: 23  }, { firstname: 'Ivan', lastname: 'Todorov', age: 21  },  {  firstname: 'Gosho', lastname: 'Todorov', age: 24  },  {  firstname: 'Bay',  lastname: 'Dragan',  age: 22 }];

            function groupPersons(array, groupBy) {
                var groupedArr = {};

                for (var i in array) {
                    var person = array[i];
                    var group = person[groupBy];

                    if (!groupedArr[group]) {
                        groupedArr[group] = []; //create key
                    }
                    groupedArr[group].push(person); // add to key
                }

                return groupedArr;
            }

            var groupedArray = groupPersons(persons, 'age');

            for (var i in groupedArray) {
                var arr = groupedArray[i];
                for (var j in arr) {
                    var personIs = arr[j];
                    console.log(personIs.firstname + ' ' + personIs.lastname + ' ' + personIs.age);
                }
            }
        }
        exercise6();
    </script>
</body>
</html>
	<!DOCTYPE html>
	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<title>Using Objects</title>
	</head>
	<body>
	<script>
	function exercise6() {
	// Exercise 06
	var persons = [{firstname: 'Gosho', lastname: 'Petrov', age: 24 }, { firstname: 'Ivan', lastname: 'Minov', age:21 },{ firstname: 'Ivan', lastname: 'Petrov', age: 22 }, { firstname: 'Bay', lastname: 'Ivan', age: 23 }, { firstname: 'Ivan', lastname: 'Todorov', age: 21 }, { firstname: 'Gosho', lastname: 'Todorov', age: 24 }, { firstname: 'Bay', lastname: 'Dragan', age: 22 }];

	function groupPersons(array, groupBy) {
	var groupedArr = {};

	for (var i in array) {
	var person = array[i];
	var group = person[groupBy];

	if (!groupedArr[group]) {
	groupedArr[group] = []; //create key
	}
	groupedArr[group].push(person); // add to key
	}

	return groupedArr;
	}

	var groupedArray = groupPersons(persons, 'age');

	for (var i in groupedArray) {
	var arr = groupedArray[i];
	for (var j in arr) {
	var personIs = arr[j];
	console.log(personIs.firstname + ' ' + personIs.lastname + ' ' + personIs.age);
	}
	}
	}
	exercise6();
	</script>
	</body>
	</html>