Arrays with JavaScript

    var characters = ['Luke', 'Leia', 'Han', 'Chewie']; 
    console.log(characters); 
    console.log(characters.length); 
    console.log(characters[0]);
    
    characters.push('Anakin');   //adds to the top of the array
    characters.push('Obiwan');  //adds to the top of the array
    
    characters.pop(); //removes top item from array 
    characters.pop(); //removes top item from array
    
    characters.unshift('C3P0');   //adds to the bottom of the array
    characters.unshift('R2D2');   //adds to the bottom of the array
    
    characters.shift(); //removes first item from array 
    characters.shift(); //removes first item from array