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AngularJSFront End Development

Angular 2.0- Communication among components using Services

In this article, we are going to discuss about how different components can share data using services. To understand services properly, I have developed a simple Angular 2 app in which components are sharing data with each other. About Angular 2.0 Angular 2.0 is a new framework that helps in developing Single page JavaScript applications […]

Technology

Introduction to Shadow DOM

Web Components consists of several independent technologies, Shadow Dom is one of them. Web components are reusable user interface widgets that are created using open Web technology. They are fully browser supported or we can say they are part of the browser, so they don’t need external libraries like jQuery or Polymer. Web Components is a […]

DevOps

“Foolproof Your Bash Script” – Some Best Practices

I am a DevOps practitioner and a lazy one too, so whenever we come across any task that needs to be repeated, we create a bash script. I have been doing this for a long time and after doing a lot of mistakes, I figured that if we follow some basic rules we can make our script more […]

Front End DevelopmentTechnology

Tabbing with CSS and HTML without using JS/Jquery

Using tabs in front end development is really a wonderful way to group several content into a very small space. Tabs are incredibly handy when you have to deal with lots of content that would simply fill up your entire page with too much information. There are many ways to create tabbing with jQuery. Here […]

Node.js

Create CLI in Nodejs

I wanted to create a command line tool for sharing files for some time now, but given all the things we have to go through to do that same was a hassle. But after getting to know Node.js more,  I have never thought it would be done with so much ease. NPM helps us to […]

AWSDevOpsTechnology

Elasticsearch Migration : Found to AWS EC2

Our DevOps team was using Found for one of our projects in the production environment. We have been facing a problem with found where it’s memory pressure frequently goes up and does not drop down so easily and until the time it remains up the Found was not able to serve the requests. Then, we decided to […]

AWSDevOpsTechnology

7 Things You Must Know About Load-Testing Using JMeter

Load testing is a must-do task for the infrastructure benchmarking. Performing load test in a proper way and analysis of load test results are the two main points which tells you the performance of your infrastructure. In this blog, I’ll be covering the key points which one should keep in mind to achieve the benefits […]

AWSDevOpsTechnology

JMeter Master Slave Setup In Multiple AWS Regions

In this blog, I’ll be demonstrating how to set up master-slave JMeter set up in multiple AWS regions. The aim is to generate load from multiple regions or multiple AZs in order to get a flavour of real load. For this purpose I am using EC2 servers, so a master server in Oregon region and […]

DevOps

Daemonizing a Process in Linux

Most of the times when we need to run some Java, Node.js or python program in background, so it could stay running even after you leave console all we do is put “&” in the end of the command. $java -jar SimpleService.jar & The problem here is that when you leave the bash shell your […]

Technology

Introduction to PolymerJS: Building Web Components

In the history of web development there have been many changes. Day by day new innovations were introduced in the market to make web more interative and meet user expectations. Javascript has evolve a lot due to these innovations but HTML hasn’t grown that much. So at the end of the day we end up […]

AWSTechnology

Convert Apache (x509 cert) SSL Certificate to Tomcat (Keystore)

When setting up SSL certificate for a website, we mainly use two types of SSL certificate one is x509 mostly used with applications support OpenSSL library and other is Keystore which is used with Java 1.6+ applications. Apache/Nginx uses x509 pem/crt files which is is very different than a Jetty/Tomcat (Java 1.6+) system that uses […]

Node.js

Node Js Child Process Module

Node works efficiently with I/O because of asynchronous event driven programming model,but in case of CPU-intensive tasks it will block the event loop, thus limiting the application responsiveness. CPU-intensive tasks should be performed by different process, to keep event loop free. So, Node allow us to spawn a new process and assigned the new task […]

Services