Tuesday, 12 February 2019

What is JavaScript and its Advantages

JavaScript is also often known as JS and it is a lightweight, interpreted, object-oriented language with best in class functions, and it is also known as the scripting language for a web page and today it is mainly used in many non-browser environments. JavaScript is also a prototype based with multi paradigm scripting languages which are dynamic. It also supports object-oriented, imperative and it works on programming style.

And a JavaScript runs on the client side of the web and it can also be used to design the program depend on the web page behavior to the particular event. Not only that Java Hosting is also easy to learn and it is also a powerful scripting language which is widely used for controlling the web page behavior.


For what JavaScript can be used for?


You might know that an HTML page is a static one so if you are not using JavaScript then still it would be static. Using JavaScript you can make the website more active and also user-friendly, JavaScript will also help you to have an easy navigation of the website and it will also help the designers to guide the visitors with some additional information. And today, if you are planning to use some special effects like rollover on images then using JavaScript, is one of the best options.

JavaScript will also support some external applications like PDF documents, running widgets, supporting for flash applications etc. For this reason today JavaScript has emerged like a boom in the web hosting industry. And today there is no web technologies that are not using JavaScript. In  AJAX and JQuery, in that the AJAX – Asynchronous JavaScript and XML - which is Javascript which plays a very important role and in JQuery it gives the library for predefined functions for adding animations and many dynamic features to the web pages. Thus AJAX and JQuery are some of the current web trends in terms of Dynamic website design and development.

For all these unique features today Javascript stands an important and special functionality in the client’s browser instead of the site’s server. And the role of Javascript can never be denied - because JavaScript can act as both object-oriented language and procedural language.


Advantages of JavaScript

Speed


Client-side JavaScript is very fast because it can be run immediately within the client-side browser. Unless outside resources are required, JavaScript is unhindered by network calls to a backend server. It also has no need to be compiled on the client side which gives it certain speed advantages.


Client-Side execution


One of the best part of using JavaScript is that you get client side executions. Yes in JavaScript no matter what execution option is always on client environment which will save bandwidth and make execution process fast.


Simplicity


JavaScript is relatively simple to learn and also to implement.


Rapid Development


The syntax in JavaScript are very easy and also flexible for the developers. And with JavaScript's small bit of code you can test easily on Console Panel at a time browser interpret return output result. In-short easy language to get pick up in development.


Popularity


Today Javascript is used everywhere on the web. Abd the resources to learn in Javascript are numerous. StackOverflow and GitHub have many projects that are using Javascript and the language as a whole has gained a lot of traction in the industry in recent years especially.


Rich interfaces


Drag and drop components or slider may give a rich interface to your website.


Node.js servers


If you were to bootstrap node.js with Express, use a document database like MongoDB, and use JavaScript on the front-end for clients, it is possible to develop an entire JavaScript app from front to back using only JavaScript.


And there are also different types of JavaScript Frameworks like AngularJS, NodeJS, ReactJS. So here are some information on those JavaScript frameworks -


AngularJS



Basically AngularJS is a client side JavaScript MVC framework which help to develop a dynamic web application. This AngularJS was launched in 2009 by Google as an open source client-side web framework. And AngularJS is entirely based on HTML and JavaScript, so there is no need to learn another syntax or language. It assists AngularJS developers to resolve issues in single page web application containing a shell page with multiple views. It also get well with all other libraries and thus it helps in extending HTML vocabulary for your web application.

Moreover today Angular JS is one of the most popular modern day web frameworks available today. And the reason for its popularity is because this framework is used for developing mostly Single Page applications.  This AngularJS Development works on the features like routing, data binding, templates, dependency injection, directives, deep linking, and filters.


NodeJS


This NodeJS is an open-source server side runtime environment built on Chrome's V8 JavaScript engine. And Node.js is a JavaScript runtime environment. It provides an event driven, non-blocking (asynchronous) I/O and cross-platform runtime environment for building a highly scalable server-side application using JavaScript. In NodeJS the Node run-time environment includes everything you need to execute a program written in JavaScript.

Node.js can be used to build different types of applications such as command line application, web application, real-time chat application, REST API server etc. However, it is mainly used to build network programs like web servers, similar to PHP, Java, or ASP.NET. Since NodeJS is an open source it runs on various platform like Windows, Linux, Mac OS X and Unix etc. One of the best part of using NodeJS is  that the developers can scale up applications created in Node.JS in vertical as well as horizontal manners


ReactJS





ReactJS is a component-based library which is basically used to develop interactive UI’s. So today ReactJS is one of the most popular front end JavaScript library. This was built by top engineers at Facebook. Moreover React is a critical tool that has had a big impact on the way we build web applications. For this reason it is one of the most popular front-end JavaScript libraries and it deals with View in the MVC(Model - View - Controller). So, if you are dealing with the applications where data keeps on changing in real time, you should go for React.

In React, the application is composed of different components. Each time any data is added, it will automatically update the specific component whose state has actually changed. Why ReactJS is so popular is that it has a way in which data flow takes place. Because the earlier frameworks were using the traditional approach in which the web pages need to be refreshed to check any update.

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