原创 Node(23) JSON

JSON example  profiles.js module.exports = { Peter : { name: 'Peter Parker', age: '18', gender: 'M', grade: '

原创 Node(21) DNS- lookup and resolve

resolve IP address: example from node.js API var dns = require('dns'); dns.resolve4('www.google.com', function (err,

原创 Node(23) Express

Express is the most popular Node framework. Use Express to handle get and post are extremely simple. Hello World var

原创 Javascript OOP object literal

Everything in Javascript is object. Arrays, functions objects, regular expression are all objects. They are all passe

原创 Javascript validating form input using RE

Usually checking validity of form input involve regular expression. javascript RE is object it begins with / and ends w

原创 Javascript Pattern Module pattern

The Module pattern encapsulates "privacy", state and organization using closures. It provides a way of wrapping a mix

原创 Graph

graph graph is an abstract data type that is meant to implement the graph and hypergraph concepts from mathematics. Ed

原创 java wildcards examples

Specifying upper bound with extends // drawAll() can draw a list of shapes as well as a list of subtype of //

原创 Sort

Selection sort: int i, j; for( i = 0;i < size - 1; i++ ) { int minValIndex = i; for( j

原创 Javascript Function

Functions are link to Function.prototype. Function.prototype is linked to Object.prototype. Since functions are object,

原创 Javascript Exception

The throw statement interrupts execution of the function. It should be given an exception object containing a name prop

原创 C linkedList

One Way Linked List /* * File: OneWayList.c * Author: xinghuazhang * * Created on March 22, 2012, 9:41 PM */

原创 Saxon PE usage

To be honest, saxon PE documentation is super confusing. All I know is just a simple usage from Saxon PE Basic usage:

原创 BinarySearch

Type:  logarithmic algorithm Performance: O(log N) Worse case: logN + 1 Requirement - a is already sorted return index

原创 Tomcat MVC example - FindCat

This program is developed in Tomcat7 Eclipse EE program purpose:  Find the cat by its name index.html - has a input box