let str = "string";
console.log("String ", str); // String string
str += 56;
console.log("String with number: ", str); // String with number: string56
console.log(typeof(str)); // string
let str = "string";
console.log("String ", str); // String string
str += 56;
console.log("String with number: ", str); // String with number: string56
console.log(typeof(str)); // string