Java Script Development Archives | Blog

Meteor

it_geeks — Wed, 26 Apr 2017 12:13:59 +0000

Meteor a full stack JavaScript (JS) framework, made up of a collection of libraries and packages. Meteor has been built on concepts from other frameworks and libraries in a way that makes it easy to prototype applications. Essentially, it makes web development easier. It’s flexible and requires less code, which means less bugs and typically a higher quality and more stable end result. Hence, meteor is easy to learn and quick to build and thats why it is a favorite for many developers. Things that make this framework a favorite are:

With JavaScript on the front-end and back-end, plus smart packages, Meteor allows you to develop faster. This makes others trying to get a product out the door quickly.
Aside from rapid development, JavaScript on the server and client has other benefits—like less context switching. Moreover, JavaScript is one of the most popular programming languages in the world. It has many use-cases, and many developers are already familiar with it.
Anyone who gives Meteor a try knows how simple it is to get up and going. Unlike other popular full stack frameworks, you don’t have to rely on multiple languages. Any semi-experienced JS developer could be handed a Meteor project with decent structure, and pick it up and get it running quickly, it’s simple to learn and work with.
Meteor is the perfect solution for those looking to build real-time applications. It is real-time by default, known as “full stack reactivity”. All of the application’s layers from database to template update automatically. This means there is no need to refresh the page to see updates. And any changes to documents save instantly. This makes Meteor a perfect use-case for real time collaboration, too.
Building out a login system for your application can be a pain. But not with Meteor. Meteor packages make it simple to add features such as:
User accounts
Javascript libraries like React
Extras like Bootstrap or Stylus
…and more

Meteor makes it simple to turn your web app into a smartphone app with Cordova. Cordova is a platform to build native smartphone applications using HTML, CSS and JavaScript. It has a set of APIs that allow you to access native device functions, like the camera, with JavaScript. And the best part is that Meteor comes out of the box with Cordova.
The web is becoming an increasingly real-time environment. With the growth of online applications like real-time collaboration tools, instant customer support, multiplayer web games, and more, the need for real-time friendly applications is increasing.

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Java Virtual Machine (JVM)

it_geeks — Mon, 10 Apr 2017 13:31:49 +0000

The Java Virtual Machine (JVM) is an environment that executes Java programs. Java programs are compiled into an intermediate language called bytecode. When we run a program, JVM is responsible to converting Byte code to the machine specific code. JVM is also platform dependent and provides core Java functions like memory management, garbage collection, security etc. JVM is customizable and we can use java options to customize it, for example allocating minimum and maximum memory to JVM. JVM is called virtual because it provides a interface that does not depend on the underlying operating system and machine hardware. This independence from hardware and operating system is what makes java program write-once run-anywhere. This makes Java software compatible with many different computing platforms.Things one should know about JVM::

Java bytecode can be written once and then run on multiple platforms. Java bytecode does not need to be ported to a specific hardware environment because it runs in the Java Virtual Machine.
Java was written with security in mind. The Java Virtual Machine has built-in security features that allow programmers to write highly secure Java programs. It also prevents malicious software from compromising the Operating System (OS) because it keeps Java applications from interacting with Operating System resources.
Java programs that run on a Java Virtual Machine tend to perform slower than equivalent programs written in C++. The system neutrality of bytecode acts as a disadvantage where performance is concerned. This is because code optimization relies heavily on system-specific features. Since Java bytecode is system-neutral, it cannot be optimized for a specific hardware set.
A program that performs, as expected, is said to be correct. Since a Java program relies on the Java Virtual Machine to execute it, the JVM must be free of errors for the program to operate correctly. Luckily, the Java Virtual Machine software is produced with very high standards, and therefore it isn’t likely to ship with any errors.

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MEAN stack (mongoDB, Express.js, Angular.js, Node.js)

it_geeks — Thu, 15 Dec 2016 13:11:41 +0000

M.E.A.N. its self is not a framework, its stands for Node, Express, Angular and MongoDB which are the technologies used to complete the stack. The term MEAN stack refers to a collection of JavaScript based technologies used to develop web applications. MEAN is an acronym for MongoDB, ExpressJS, AngularJS and Node.js. From client to server to database, MEAN is full stack JavaScript. These components combine together to enable you to create the smartest web and mobile applications, and to initiate rock-solid front-end and back-end support. All this technologies common thread is java script, cost effective because of open source, popular for creating dynamic websites. It supports model view controller (MVC) architecture. Uses JSON to transfer the data. MEAN is more innovative and cutting edge technology which will lead the future web applications. Mongo DB is a schema less, easy to scale, has no complex joins, structure of a single object is clear, Tuning, conversion of application object to database objects not needed, uses internal memory for storing the working set, enabling faster access of data. In MEAN stack the only knowledge of language you require is JavaScript. JavaScript was and still is, the mainstream scripting language that runs on the client side and makes the web page dynamic and responsive. The fact that only one language is required in the MEAN stack, it becomes a lot easier for developers to manage the front end as well as the backend. This reason alone is enough that companies should prefer a MEAN stack.

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