'use strict';

const letters = [];

letters.push('B');

console.dir({ letters });

letters.unshift('A');

console.dir({ letters });

letters.push('C');

console.dir({ letters });

const numbers = [1, 2, 3];

numbers.push(4);

console.dir({ numbers });

const languages = ['C++', 'JavaScript', 'Python', 'Haskell', 'Swift'];

console.dir({

length: languages.length,

'languages[0]': languages[0],

'languages[languages.length - 1]': languages[languages.length - 1]

});