how to find the length of the string in javscript code example

Example 1: length of string in javascript

var str = "Hello World!";
var n = str.length;

Example 2: string length javascript

/* The length property of a String object contains the length of the
string, in UTF-16 code units. length is a read-only data property of
string instances. */

const str = "Life, the universe and everything. Answer:";
console.log(`${str} ${str.length}`);
// expected output: "Life, the universe and everything. Answer: 42"