Array.js

/*var cars = [
    "Saab",
    "Volvo",
    "BMW"
];
 cars.pop();
 cars.pop();

console.log(cars);*/

/*var cars = new Array("Saab", "Volvo", "BMW");
 var x = cars.length;         // The length property returns the number of elements in cars
 var y = cars.sort();  
 console.log(x);
 console.log(y);       // The sort() method sort cars in alphabetical order 
 cars.push("Maruthi")*/
/*var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.push("Lemon"); 

 var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits[fruits.length] = "Lemon";     // adds a new element (Lemon) to fruits*/


/*var index,text=0;
var fruits = ["Banana", "Orange", "Apple", "Mango"];
for	(index = 0; index < fruits.length; index++) {
    text += fruits[index];
    console.log(fruits[index]);
}*/





/*var points1 = new Array(20)  // Bad

var points2 = [40, 100, 1, 5, 25, 10];  

var num = 'a';        // Good 

console.log(typeof points1);
console.log(typeof points2);
console.log(typeof num);
/*
var points = new Array(40, 100);  // Creates an array with two elements (40 and 100)
var points = new Array(40);       // Creates an array with 40 undefined elements !!!!!

var fruits = ["Banana", "Orange", "Apple", "Mango"];
typeof fruits;             // typeof returns object 
*/