Nested Data

schools.js

const schools = [
	{
		type: "elementary",
		teachers: [
			{
				name: "Mr. Smith",
				class: "Pirate History",
				students: [
					"Toya Whitebeard",
					"Snooty Helge",
					"Cutthroat Sue The Daring",
				],
				grades: [94, 99],
			},
			{
				name: "Mr. Matthews",
				class: "Coding for Youngin's",
				students: ["Abigail Vera", "Estelle Sigmund"],
				grades: [75, 100],
			},
		],
	},
	{
		type: "middle",
		teachers: [
			{
				name: "Ms. Johnson",
				class: "Art",
				students: ["James Garcia", "Robert Miller"],
				grades: [90, 100],
			},
			{
				name: "Mr. Williams",
				class: "Science",
				students: ["John Brown", "Andy Jones"],
				grades: [60, 90],
			},
		],
	},
	{
		type: "high",
		teachers: [
			{
				name: "Ms. Thorne",
				class: "Theoretical Programming",
				students: ["Taylor Taylor", "Jackson Moore"],
				grades: [30, 64],
			},
		],
	},
];

//print out all the school types
for (const school of schools) {
	console.log(school.type);
}

//print out all the teachers in the middle school
for (const teacher of schools[1].teachers) {
	console.log(teacher);
}

//print out all the class names along with the type of the school
for (const school of schools) {
	for (const teacher of school.teachers) {
		console.log(teacher.class);
	}
}

//print out all the students names
for (const school of schools) {
	for (const teacher of school.teachers) {
		for (const student of teacher.students) {
			console.log(school.type + " - " + student);
		}
	}
}

//print out the grade average for each teacher & school
for (const school of schools) {
	let totalScore = 0;
	let gradeCount = 0;

	for (const teacher of school.teachers) {
		let teacherScore = 0;

		for (const grade of teacher.grades) {
			teacherScore += grade;
			totalScore += grade;
			gradeCount++;
		}
		console.log(
			"Grade average for " +
				teacher.name +
				"'s students is: " +
				teacherScore / teacher.grades.length
		);
	}

	console.log(
		"Grade average for " +
			school.type +
			" school is: " +
			totalScore / gradeCount
	);
}