the usecase of javascript->
IT field has seen the emergence of Node.js, a development platform that enables more streamlined software development processes through server side use of JavaScript. The most notable of these new methods is DevOps, which combines software development and IT operations — two previously separate organizational groups — into a single, coherent team
Together, DevOps and Node.js promise even faster software development than existing development platforms.
What is Javascript ?
JavaScript is a scripting language used to create and control dynamic website content, i.e. anything that moves, refreshes, or otherwise changes on your screen without requiring you to manually reload a web page. Features like:
- animated graphics
- photo slideshows
- autocomplete text suggestions
- interactive forms
What is Node.js ?
Node.js is an open source, cross-platform runtime environment for developing server-side and networking applications. Node.js applications are written in JavaScript, and can be run within the Node.js runtime on OS X, Microsoft Windows, and Linux.
Node.js also provides a rich library of various JavaScript modules which simplifies the development of web applications using Node.js to a great extent.
Features of Node.js
- Asynchronous and Event Driven − All APIs of Node.js library are asynchronous, that is, non-blocking. It essentially means a Node.js based server never waits for an API to return data. The server moves to the next API after calling it and a notification mechanism of Events of Node.js helps the server to get a response from the previous API call.
- Very Fast − Being built on Google Chrome’s V8 JavaScript Engine, Node.js library is very fast in code execution.
- Single Threaded but Highly Scalable − Node.js uses a single threaded model with event looping. Event mechanism helps the server to respond in a non-blocking way and makes the server highly scalable as opposed to traditional servers which create limited threads to handle requests.
- No Buffering − Node.js applications never buffer any data. These applications simply output the data in chunks.
Where to Use Node.js ?
Following are the areas where Node.js is proving itself as a perfect technology partner.
- I/O bound Applications
- Data Streaming Applications
- Data Intensive Real-time Applications (DIRT)
- JSON APIs based Applications
- Single Page Applications
What is DevOps ?
DevOps is the combination of cultural philosophies, practices, and tools that increases an organization’s ability to deliver applications and services at high velocity: evolving and improving products at a faster pace than organizations using traditional software development and infrastructure management processes. This speed enables organizations to better serve their customers and compete more effectively in the market.
How JavaScript useful in DevOps ?
JavaScript is used as DevOps Scripting to create network-centric applications. It is a lightweight and Interpreted DevOps Scripting Language. Due to which, earlier, it was named LightScript, but its name was changed by Netscape as JavaScript.
JavaScript is hugely preferred by the DevOps due to its numerous advantages like less server interaction, increased interactivity, immediate feedback to the visitors, richer interfaces. In recent days, this DevOps Programming Language is also being used in Mobile App Development, Game Development, and Desktop App Development.
Overall, the ecosystem of JavaScript Framework and Project continues to grow at a very rapid pace. It ranges from Client-side JavaScript to Server-side Frameworks, a great range of Internet runs over JavaScript.
Though, JavaScript is not as flexible as Python, despite that JavaScript is benefited from a vast user base. With this, we can infer that there is a large community to benefit from it and having plenty of JavaScript projects as well to work on it.
- Node.js makes it relatively simple to build fast, scalable network applications.
- Node.js is designed for fast operation and great user experiences.
- Node.js has a big community and broad adoption.
DevOps and Node.js, which radically simplify the app development and deployment process, are rewriting the industry’s understanding of what “dev” and “ops” are really about. DevOps with Node.js on an automated hosting platform such as Modulus blurs the line between the developer and operations roles. Developers can do operations. Operations people are deeply involved in development. There are fewer handoffs because individuals can handles tasks that used to be performed in different groups. As LOB managers become more familiar with this potent form of DevOps, they are likely to embrace the methodology as a path to business advantage through technological leadership.