scope.js

/* global/block scope */
let result = 10;
function sum(x, y) {
	let result = x + y;
	console.log(result); // 35
	if (result > 10) {
		var msg = "more than 10";
		console.log(msg);
	}
	console.log(msg); // outside scope, because of hoisting
}
sum(15, 20);
console.log(result); // 10
/**
 * Output:
    35
    more than 10
    more than 10
    10
 */