sort.js

var a = ['c', 'a', 'd', 'b', 'aa'];
var b = [9, 2, 13, 7, 1, 12, 123];

// Sort in ascending lexicographical order using a built-in
a.sort();
b.sort();

console.log('a:', a);
console.log('b:', b);
//-----------------------------------------------------
var a = ['c', 'a', 'd', 'b', 'aa'];
var b = [9, 2, 13, 7, 1, 12, 123];

// Sort in descending lexicographical order using a compare function
a.sort(function (x, y) {
  return x < y;
});
b.sort(function (x, y) {
  return x < y;
});

console.log('a:', a);
console.log('b:', b);
//-----------------------------------------------------

var a = ['c', 'a', 'd', 'b', 'aa'];

// Sort in descending lexicographical order using a compare arrow function
a.sort((x, y) => x < y);

console.log('a:', a);