The Modern JS Tutorial: Variable scope and Closure: sort by field

	// function byField(field) {
	// return function(a, b) {
	// return a[field] > b[field] ? 1 : -1;
	// }
	// }
	function byField(field) {
	return (a, b) => a[field] > b[field] ? 1 : -1;
	}
	const users = [
	{ name: "John", age: 20, surname: "Johnson" },
	{ name: "Pete", age: 18, surname: "Peterson" },
	{ name: "Ann", age: 19, surname: "Hathaway" }
	];
	users.sort(byField('name'));
	console.log('sort by name field', users);
	users.sort(byField('age'));
	console.log('sort by age field', users);

view raw jst_variableScopeAndClosure_9_sortByField.js hosted with ❤ by GitHub