#vidu.html

<script type="text/javascript">
	var classList = [{"className":"C2307L","address":"19 Le Thanh Nghi","studentList":[{"fullname":"TRAN VAN A","age":32,"address":"Nam Dinh","email":"tranvana@gmail.com","gender":"Male"},{"fullname":"TRAN VAN B","age":22,"address":"Ha Noi","email":"tranvanb@gmail.com","gender":"Male"}]},{"className":"C2307L","address":"19 Le Thanh Nghi","studentList":[{"fullname":"TRAN VAN A","age":32,"address":"Nam Dinh","email":"tranvana@gmail.com","gender":"Male"},{"fullname":"TRAN VAN B","age":22,"address":"Ha Noi","email":"tranvanb@gmail.com","gender":"Male"}]}];
	console.log(classList)
	//Object | Array -> json string
	var json = JSON.stringify(classList)
	console.log(json)

	//json string -> Object | Array
	var classList2 = JSON.parse(json)
	console.log(classList2)
</script>

#classes.min.json

[{"className":"C2307L","address":"19 Le Thanh Nghi","studentList":[{"fullname":"TRAN VAN A","age":32,"address":"Nam Dinh","email":"tranvana@gmail.com","gender":"Male"},{"fullname":"TRAN VAN B","age":22,"address":"Ha Noi","email":"tranvanb@gmail.com","gender":"Male"}]},{"className":"C2307L","address":"19 Le Thanh Nghi","studentList":[{"fullname":"TRAN VAN A","age":32,"address":"Nam Dinh","email":"tranvana@gmail.com","gender":"Male"},{"fullname":"TRAN VAN B","age":22,"address":"Ha Noi","email":"tranvanb@gmail.com","gender":"Male"}]}]

#classes.json

[
	{
		"className": "C2307L",
		"address": "19 Le Thanh Nghi",
		"studentList": [
			{
				"fullname": "TRAN VAN A",
				"age": 32,
				"address": "Nam Dinh",
				"email": "tranvana@gmail.com",
				"gender": "Male"
			}, {
				"fullname": "TRAN VAN B",
				"age": 22,
				"address": "Ha Noi",
				"email": "tranvanb@gmail.com",
				"gender": "Male"
			}
		]
	}, {
		"className": "C2307L",
		"address": "19 Le Thanh Nghi",
		"studentList": [
			{
				"fullname": "TRAN VAN A",
				"age": 32,
				"address": "Nam Dinh",
				"email": "tranvana@gmail.com",
				"gender": "Male"
			}, {
				"fullname": "TRAN VAN B",
				"age": 22,
				"address": "Ha Noi",
				"email": "tranvanb@gmail.com",
				"gender": "Male"
			}
		]
	}
]

#class.json

{
	"className": "C2307L",
	"address": "19 Le Thanh Nghi",
	"studentList": [
		[
			{
				"fullname": "TRAN VAN A",
				"age": 32,
				"address": "Nam Dinh",
				"email": "tranvana@gmail.com",
				"gender": "Male"
			}, {
				"fullname": "TRAN VAN B",
				"age": 22,
				"address": "Ha Noi",
				"email": "tranvanb@gmail.com",
				"gender": "Male"
			}
		]
	]
}

#student-obj.json

{
	"fullname": "TRAN VAN B",
	"age": 22,
	"address": "Ha Noi",
	"email": "tranvanb@gmail.com",
	"gender": "Male"
}

#student.json

[
	{
		"fullname": "TRAN VAN A",
		"age": 32,
		"address": "Nam Dinh",
		"email": "tranvana@gmail.com",
		"gender": "Male"
	}, {
		"fullname": "TRAN VAN B",
		"age": 22,
		"address": "Ha Noi",
		"email": "tranvanb@gmail.com",
		"gender": "Male"
	}
]