var numbers = [1, 4, 9];
var doubles = numbers.map(function(num) {
	return num * 2;
});

// Logs [2, 8, 18]
console.log(doubles);

var data = [
	{
		name: 'Kyle',
		occupation: 'Fashion Designer'
	},
	{
		name: 'Liza',
		occupation: 'Web Developer'
	},
	{
		name: 'Emily',
		occupation: 'Web Designer'
	},
	{
		name: 'Melissa',
		occupation: 'Fashion Designer'
	},
	{
		name: 'Tom',
		occupation: 'Web Developer'
	}
];
var names = data.map(function (item) {
	return item.name;
});