SEARCH KEYWORD -- SYSTEM DESIGN



  Break down defer statements in GoLang

Basic Concepts What are the characteristics of the deferred statement defer in Go language? When is it usually used? The deferred statement(defer statement) in Go language has the following characteristics: Deferred Execution: Deferred statements are executed before the function containing them exits, regardless of whether the function returns normally or encounters an exception. Last In, First Out (LIFO): If there are multiple deferred statements, they are executed in the order of last in, f...

   DEFER,GOLANG     2024-02-10 21:56:10

  How to Encrypt Your Online Conversations

Do you ever get the feeling that somebody might be listening to or reading your private conversations? You're not crazy.  Online platforms don’t hide that they use data from chats, searches, emails, and other places for targeted advertisements. Aside from being a massive invasion of privacy, it also puts your security at risk.  But it is possible to prevent people from snooping on you. All you need is a little encryption. Check out these different ways you can add encryption into...

   DATA SECURITY,VPN     2020-01-30 07:33:29

  Is Mobile App Required For Your Business?

Having a mobile app for your business is the latest trend. Every business, large or small is aiming for developing a mobile app to attract customers and boost the sales. Products or services offered by the business do not matter in this case.  The main purpose is to keep your users updated and engaged. An app is a perfect tool for generating new customers too. The statistics reveals that numbers of mobile internet users are more than the desktop users. It clearly means that businesses must ...

   App Development Services, Outsource Android App Development, Android App Development Experts     2015-03-05 00:47:46

  Understanding an interesting JavaScript map function question

With the evolvement of JavaScript, lots of new features have been added this old but robust language.  Among them are lots of functional programming language related functions like map, filter, each etc. In this post, we will cover one function map and its interesting behavior. Before dive into the details, let first take an example, do you know the output of below function call? ['1', '7', '11'].map(parseInt) You may think that it's easy and the output would be [1, 7, 11] Can you try to ru...

   JAVASCRIPT,MAP,FUNCTIONAL PROGRAMMING     2019-06-14 08:34:46

  Using Java keytool programmatically

Java provides a command line tool to access and operate different keystore which store keys and certificates. This tool is named keytool and is located at \bin.  On command line, you can issue below command to generate a keystore named mytest.jks which contains a private key and certificate chain. keytool -genkeypair -alias mykey -keyalg RSA -sigalg SHA256withRSA -dname CN=Java -storetype JKS -keypass password -keystore mytest.jks -storepass password Sometimes, in testing purpose, w...

   JAVA,KEYTOOL     2016-01-09 06:28:07

  How to install Oracle database on Linux using response file

There are two ways to install Oracle database on Linux :1). Using GUI; 2). Using response file. In this post, the method for using response file will be introduced. To install Oracle, please first get the Oracle database installation file ready. It can be downloaded from Oracle OTN. You need to have an Oracle account before you can download them. And there are three major components of the Oracle database installation : 1). The installation itself; 2). The network configuration; 3). Database cre...

   LINUX,HOW TO,ORACLE DATABASE     2017-06-03 04:15:49

  Will IBM fall?

IBM has over 100 year's history and it faced many tough challenges along the way but every time it came back successfully. This time its revenue dropped 6 quarters consecutively, with the popularity of cloud computing and big data, IBM seems lag behind and is heavily hit by the storm. Its current technologies are only suitable for serving traditional companies 15 years ago but not companies now. Can IBM go though this challenge and come back again? It seems IBM doesn't want to be left out. Th...

   IBM,transformation,Watson     2014-01-27 08:01:41

  PHP to integrate with Sign in with Google

Google has a huge user base and hence it provides an authentication service for third party service to integrate with them so that people can sign in with Google in their services. Google also adopts OAuth 2 to provide this kind of Open ID connect service. This post will introduce how to integrate with sign in with Google functionality in your PHP website.  Create a client app on Google The first step you should follow is to create a Google app, you can follow the post here to create the p...

   PHP,GOOGLE API,OPEN API,SIGN IN WITH GOOGLE     2019-03-03 02:00:09

  What drives the popularity of Node.js?

JavaScript is a programming language which can be used on both front end and back end. Its popularity should mainly be attributed to its power in front end side. While people seem not realize its power in back end until the appearance of Node.js.  Node.js is a server-side software system designed for writing scalable Internet applications, notably web servers. Programs are written on the server side in JavaScript, using event-driven, asynchronous...

   Node.ks,Popularity,NPM     2013-07-24 01:22:58

  What has Google done on improving programming languages

Google is now becoming the most innovative IT company in the world. Every now and then they would deliver one revolutionary product to us such as Google Glass, Google Fiber, Automatic Mobile Cars etc. All these great products are backed up by the powerful software system built into. Google has used many programming languages to develop these software and they have put much resource in improving the programming languages they use and we use today. What has Google done in improving programming lan...

   Google,Programming     2014-02-21 09:36:34