Monthly Archives: July 2015

Concurrency vs Multi-threading vs Asynchronous Programming : Explained

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Recently, I was speaking in an event and I asked a question about Asynchronous programming to the audience, I found that many were confused between multi-threading and asynchronous programming and for few, it was same. So, I thought of explaining these terms including an additional term Concurrency. Here, there are two completely different concepts involved, First – Synchronous and Asynchronous programming model and second – Single threaded and multi-threaded environments. Each programming model (Synchronous and Asynchronous) can run in single threaded and multi-threaded environment. Let’s discuss each in detail.

Synchronous Programming model – In this programming model, A thread is assigned to one task and starts working on it. Once the task completes then it is available for the next task. In this model, it cannot leave the executing task in mid to take up another task. Let’s discuss how this model works in single and multi-threaded environments.

Single Threaded – If we have couple of tasks to be worked on and the current system provides just a single thread, then tasks are assigned to the thread one by one. It can be pictorially depicted as

singlethreadedHere we can see that we have a thread (Thread 1 ) and four tasks to be completed. Thread starts workingon the tasks one by one and completes all. (The order in which tasks will be taken up, does not affect the execution, we can have different algorithm which can define the priorities of tasks)

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Dependency Injection Annotation Process in {{AngularJS}} – Part 18

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Hello All,

In last two post, we discussed about DI, various types available in AngularJS and some insights around it. It is going to be another post on DI itself but here we’ll talk about annotations.I would recommend to go through last two posts before going further.

  1. Dependency Injection (DI) in {{AngularJS}} – Part 16
  2. Dependency Injection (DI) in {{AngularJS}} Contd.– Part 17

Note – This post is a part of series of posts on AngularJS and it is 18th one. Click here to view all the post. Apart from that you can also use the navigation links for next and previous post in each post at the bottom to check all.

In our previous posts, we have seen that services are passed as a parameter with same name  which was used defining like Circle and this is crucial because Angular internally locate the services using the name itself. So if the name does not match then dependencies won’t be resolved. As the name should be same so minifying the script would break the application which cannot be accepted. So let’s first see that the number of options provided by AngularJS.

AngularAnnSo as we have seen, we have three ways to inject the dependencies. Lets discuss one by one

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Presented on ASP.NET performance tuning in C# Corner Hyd Chapter Event : 12th July 15

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11753645_10153514597568086_9069014579518330181_nHello All,

This was the first when I presented at a community event in Hyderabad. I was pretty excited for the day as I started hearing about this city since my college days due to its significance in IT. And yeah Microsoft’s develop center is also in this city. The day arrived and when I reached the venue, I found that most of the seats were full very early and we had some time to start the event as per schedule. Many kept standing throughout the event as the seats were already occupied completely. Here one point to be noted that we organized this event after long in this city and managed to get a venue which was not very known, also not easily accessible. I wasted more than an hour even when somebody was guiding me for the place on phone. Continue reading →

Dependency Injection (DI) in {{AngularJS}} Contd.– Part 17

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This post is in continuation of my last post DI on AngularJS. In previous post, we first discussed about DI in details with an example of implementing it in JavaScript. Then we discussed the way AngularJS provides us the opportunity to implement DI and various options available with it.  We discussed two types Value and Factory in detail. In this post, we will be discussing rest three types and will see how DI takes place behind the scene. I would suggest you to go through the previous post (Dependency Injection (DI) in {{AngularJS}} – Part 16) before continuing further.

Note – This post is a part of series of posts on AngularJS and it is 17th one. Click here to view all the post. Apart from that you can also use the navigation links for next and previous post in each post at the bottom to check all.

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Dependency Injection (DI) in {{AngularJS}} – Part 16

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Dependency Injection (DI) is one of the hottest terms being used in software development nowadays. Most of the application developers talking about this and try using it in their applications. One of the key reasons Agile methodology, as it is used in almost every project in one or other way and DI easily fits into this model and help in achieving its goal. I have been getting many request to write about DI in AngularJS so let’s start exploring that.

Note – This post is a part of series of posts on AngularJS and it is 16th one. Click here to view all the post. Apart from that you can also use the navigation links for next and previous post in each post at the bottom to check all. Continue reading →

How to use Angular Filter in Controller, Factory, Service – Part 15

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In last two posts, we explored about the Filters and saw that how easily we can create custom filter and use as Angular predefined filters. We have used these filters in views for a single as well as an array of items. This is a normal scenario but there could be some cases where you need to use these filters in other components like Controllers, Factory, and Services etc. I have seen many questions around this on different online forums. So I thought to discuss it in detail.

If you are new to Angular Filter or even if you have some idea about, I will highly recommend you to go through my below two earlier Posts then continue. In this post, I will use the same examples that I used in my previous two posts as well.

Exploring Filters in {{AngularJS}} – Part 13

Exploring Filters in {{AngularJS}} Contd. : Custom Filters – Part 14

Note – This post is a part of series of posts on AngularJS and it is fifteenth one. Click here to view all the post. Apart from that you can also use the navigation links for next and previous post in each post at the bottom to check all. Continue reading →