const a: string = "hello";
const b: string = "world";
console.log(a + " " + b);
console.log(a === "hello", a === b, a !== b);
console.log("abc" < "abd", "a" < "ab", "b" > "aaaa");
console.log("" + 42, 42 + "", true + "!");
console.log("quotes \" and backslash \\ and\nnewline");
console.log("unicode: αβγ 你好 🎉");