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  Ways to check existence of JavaScript object

The design of JavaScript is not so sophisticated. It's very easy for us to make mistakes if we are not very careful when using JavaScript. For example, to check the existence of JavaScript object. Now we want to check whether a global object myObj exists or not, if it doesn't exist, we declare it. The pseudo code for this is : if(myObj not exist){ declare myObj; } You may think it's very easy to write the code. In fact, it is much more difficult than we may think. Juriy Zaytsev says there are m...

   JAVASCRIPT,OBJECT,EXISTENCE     2020-09-12 02:14:02

  How deep should unit test go?

There is a question on Stackoverflow which says "How deep are your unit tests?". It is asked by a guy named John Nolan. The question is not too new, but what catches me is the Best Answer given by Kent Beck, who is the creator of Extreme programming(XP) and Test Driven Development(TDD). Let's look at the question first. The thing I've found about TDD is that its takes time to get your tests set up and being naturally lazy I always want to write as little code as possible. The first thing I seem ...

   Unit test,TDD,XP     2012-09-03 10:11:27

  Why Small Businesses Need Payroll System

Small businesses are scattered everywhere. The competition is soaring high. One of the ways to ensure the success of an organization is to hire the right talent and ensuring their retention.  Errors in payroll calculation can act as one of the major factors for employees to decide whether they should stay with your organization or not. The more errors, the more chances of them leaving. Errors can frustrate employees and further lower their morale.  Thus, it is crucial for you to unders...

   SMALL BUSINESS,PAYROLL SYSTEM     2021-03-08 05:35:49

  Introducing an LMS? Here's How You Can Get Your Employees Excited About It

One of the best ways to keep employees engaged and motivated to perform well is to invest in their growth. Learning & development opportunities help employees grow their knowledge and become more efficient in their jobs. Implementing a Learning Management System(LMS) is the best way to provide L&D opportunities to your employees.  Finding the best LMS for your employee learning needs starts with listing down your priorities. What do you want to achieve with the help of the LMS? What...

   CAREER,LMS,DOCEBO     2021-05-02 06:58:29

  The Singular Secret of the Rockstar Programmer

Before all the laws of software, before the purpose of software, before the science of software design itself, there is a singular fact that determines the success or failure of a software developer. This fact makes the difference between the senior engineer who can seem to pick up new languages in a day and the junior developer who struggles for ten years just to get a paycheck, programming other people’s designs and never improving enough to get a promotion. It differentiates the poor...

   Programming,Tip,Great developer,Rockstar     2011-08-07 23:42:09

  Advanced event registration models

On this page I explain the two advanced event registration models: W3C’s and Microsoft’s. Since neither is cross–browser supported, their use is, for the moment, deprecated. W3C and Microsoft have both developed their own event registration model to replace Netscape’s traditional model. Though I’m not impressed by the Microsoft model, W3C’s is very good, except for one crucial vagueness. Unfortunately few browsers support it at the moment. W3C W3Cââ‚...

   JavaScript,Event model,this,bubble,capturing     2011-12-27 09:20:44

  SkipList in Go

Algorithmic thinking is the must-have in the coding world, so I have been keeping the routine of algorithm practice every week, consolidating my knowledge of data structures on one hand, and improving my coding skills as well. A difficult one happened to be stuck in my mind- Implement SkipList with Go, which took me quite a weekend. Below is the front-line report of how I finally got the hang of it. First, from its concept. Wiki has explained it well. a skip list is a probab...

   GOLANG,SKIPLIST     2022-04-05 02:21:59

  GoLang Interview Questions

Below lists some frequently asked GoLang interview questions and their corresponding answers based on the author's experience. The list is updated frequently with new understandings. Stay tuned. What is the GMP model of GoLang? GoLang uses goroutine to achieve concurrency and it is famous for high concurrency support as the language defines its own goroutine dispatching and processing system which is well known as GMP model. How it works is that M is normally defined as the OS thread being spawn...

   MEMORY,CONCURRENCY,INTERVIEW QUESTION,GOLANG     2024-05-25 03:08:18

  Data governance Challenges and solutions in Apache Hadoop

Do you understand meaning of data governance? This is taken as most critical part of an organization that deals with sensitive data of an enterprise. If organization wanted to know who is accessing their sensitive data and what action has been taken by the viewers then data governance is wonderful solution to consider. In this article, we will discuss on data governance solutions and what are the challenges that are faced by organization during implementation of data governance. We will also dis...

   HADOOP DEVELOPMENT,HADOOP INTEGRATION     2015-10-26 08:06:29

  Week 1 : Research - Elements of Successful iPhone Games.

This weekend I started work on my first full blown game for the iPhone. I’m not ready to share the details of what the game will be specifically as I’m sure these will change dramatically over the coming weeks. All I’m sure on is it will be a platform game built with Corona SDK. To get me started I’ve been downloading a bunch of games from the app store, jotting down some of the areas contributing to their addictiveness and success. Short levels I do most of my ...

   iPhone,Game design,Mobile,Facors     2012-01-16 09:47:53