Tutorial by Topics: ng

Groovy has more ways of looping besides supporting the Java iterations. Groovy extends the Integer class with the step(), upto() and times() methods. These methods take a closure as a parameter. In the closure we define the piece of code we want to be executed several times. It also adds each() an...

How to set up basic Express web server under the node js and Exploring the Express router. At last, Using Express Router you can use routing facility in you application and it is easy to implement.

This topic will provide a comprehensive coverage of basic Unix commands.

d3 is a powerful library for creating interactive charts; however, that power stems from users having to work at a lower level than other interactive libraries. Consequently many of the examples for d3 charts are designed to demonstrate how to produce a particular thing - e.g. whiskers for a box and...

Creating a simple item with Forge is one of the first tasks an aspiring modder will have to learn. How to do that has changed over the various versions of Minecraft and is probably at a "moderate" difficulty post 1.7.10 due to the sheer number of easy to make mistakes, particularly with ma...

How to update the version of MongoDB on your machine on different platforms and versions. If you have an older version of MongoDB, you must upgrade the whole path to the newest version. For example, if you are running version 3.0 and want to get version 3.4, you must upgrade 3.0->3.2->3....

Apache spark MLib provides (JAVA, R, PYTHON, SCALA) 1.) Various Machine learning algorithms on regression, classification, clustering, collaborative filtering which are mostly used approaches in Machine learning. 2.) It supports feature extraction, transformation etc. 3.) It allows data practitio...

This topic try to tell us how we can write programs based on OOP approach.But we don't try to teach Object Oriented Programming paradigm. We'll be covering following topics: Classes,Properties,Inheritance,Polymorphism,Interfaces and so on.

Remember CodeIgniter is a development Framework. It doesn't strive to make you're application secure. It merely gives you the tools to do it yourself. If you look at CI's Security page, it pretty clear they are expecting the developer to understand Application Security and build it into their applic...

Taken from IdentityServer4 Official Docs IdentityServer4 is an OpenID Connect and OAuth 2.0 framework for ASP.NET Core. It enables the following features in your applications: Authentication as a Service Centralized login logic and workflow for all of your applications (web, native, mobil...

Prior to Java 9, access to the thread stack frames was limited to an internal class sun.reflect.Reflection. Specifically the method sun.reflect.Reflection::getCallerClass. Some libraries relies on this method which is deprecated. An alternative standard API is now provided in JDK 9 via the java.lan...

We can secure the data in Hadoop using different methods. Each method has its own advantages. We can also combine more than one method for better result. This topic covers the advantages & limitations of each method 1. Kerberos is a network authentication protocol: a. Advantage: Authentic...

Many people like working with promises and/or async/await syntax, but when writing a module it would be useful to some programmers to support classic callback style methods as well. Rather than creating two modules, or two sets of functions, or having the programmer promisify your module, your modul...

Using JSON.net JsonConverter class.

Spring has JSR303 bean validation support. We can use this to do input bean validation. Seperate validation logic from business logic using JSR303.

This topic focuses on how to get valac running on Windows.