The Modern JS Tutorial: array-methods: map to names

	let john = { name: "John", age: 25 };
	let pete = { name: "Pete", age: 30 };
	let mary = { name: "Mary", age: 28 };
	let users = [ john, pete, mary ];
	let names = users.map(user => user.name);
	console.log( names ); // John, Pete, Mary

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