JavaScript Core

count.js

var util = require('util')

var i = 1;
var j = 1;

for (i = 1 ; i < 10; i++) {

    for (j =1 ; j < 10; j++) {

        util.print(i * j + "\t");

    }

    util.print("\n");
}


/*

RESULT

1   2   3   4   5   6   7   8   9   
2   4   6   8   10  12  14  16  18  
3   6   9   12  15  18  21  24  27  
4   8   12  16  20  24  28  32  36  
5   10  15  20  25  30  35  40  45  
6   12  18  24  30  36  42  48  54  
7   14  21  28  35  42  49  56  63  
8   16  24  32  40  48  56  64  72  
9   18  27  36  45  54  63  72  81

*/

switch.js

var s = "hello";
var ret;

switch (s) {

	case "he":
		ret = "he";
		break;
	case 1:
		ret = 1;
		break;
	case true:
		ret = "true";
		break;
	case "Hello".toLowerCase():
		ret = "Hello";
		break;
	default:
		ret = "nothing";
}

console.log(ret);

/*

RETURNS "Hello"

*/

types.js

/*

A small test on how JS treats types

*/

var s = "hello";
var int = 1;
var float = 1.0;
var boolean = true;
var vnull = null;
var vundefined = undefined;
var obj = new Object();
var arr = new Array();

function x() {
	return 1;
}

function y() {
	return
}

function z() {
	
}

// Let's see the typeof results

console.log("s " + typeof(s));
console.log("int " + typeof(int));
console.log("float " + typeof(float));
console.log("boolean " + typeof(boolean));
console.log("vnull " + typeof(vnull));
console.log("vundefined " + typeof(vundefined));
console.log("obj " + typeof(obj));
console.log("arr " + typeof(arr));
console.log("function x " + typeof(x()));
console.log("function y " + typeof(y()));
console.log("function z " + typeof(z()));
console.log("wildcard " + typeof(wildcard));

/*

RETURNS:

s string
int number
float number
boolean boolean
vnull object
vundefined undefined
obj object
arr object
function x number
function y undefined
function z undefined
wildcard undefined

*/