Rhino JS vs Node JS | Key differences and more

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In this blog, I will discuss the difference between Rhino JS vs Node JS. Even I am new to Rhino JS. I have read from different sources and have put them in this Blog.

Rhino JS vs Node JS

Rhino is just a Javascript engine written in Java Language which can execute Javascript Code. It cannot be connected to the NPM ecosystem and there is no other package. Node.js is a set of runtime environments for JavaScript programs, which not only includes the implementation of the JavaScript core language provided by V8 but also includes a wealth of libraries. In Simple, Node JS is a standalone, events, asynchronous javascript environment based on V8 and can be used for building lightweight, real-time applications.

Code Example

Rhino JS: Below Example simply prints the argument.

function print() {
    for( var i = 0; i < arguments.length; i++ ) {
       var value = arguments[i];
       java.lang.System.out.print( "PRINT ARGUEMENT OUTPUT: "+value );
    }
    java.lang.System.out.println();
}

print("InfoHubBlog")
Rhino Js Vs Node Js
Rhino Js Vs Node Js Example

Node JS: Below Example simply prints the first argument.

console.log("PRINT ARGUEMENT OUTPUT: ",process.argv[2]);
Rhino Js Vs Node Js Example
Rhino Js Vs Node Js Example

So why is Rhino being discussed together with Node.js?

Obviously, this comes from the need to use JavaScript programming on the server-side.
JVM-based language implementation is one of the popular choices for server-side programs, and Rhino is a JavaScript engine implemented in Java and running on the JVM. It can seamlessly use Java’s rich core libraries and third-party libraries, so there are many based on Rhino’s server-side JavaScript solution.

Node.js is based on the Google V8 JavaScript engine and implements core libraries such as I/O by itself. Later, it became popular to manage various third-party libraries based on NPM and became a popular emerging server-side JavaScript solution.

You can refer to this Wiki page to see what options are available for server-side JavaScript: Comparison of server-side JavaScript solutions

Is Rhino compatible with Node.js?

ANSWER: Not compatible. Rhino is a Javascript engine written in Java while Node JS is a server-side Javascript Environment using the V8 Engine. The two are different things. Compatible with Node.js means to provide the same event-based core library package, while Rhino is just a pure JavaScript engine and does not provide Node.js core library API.
The Two are different things and there is no direct competition and there is no compatibility or incompatibility.

Trend

Conclusion

Node isn’t built on top of the JVM so if you’re looking to interop with Java then Rhino is one of the few choices out there. Probably because Rhino is just an engine while Node JS is stuff on top of an engine. Rhino is more like V8 which powers Node JS.

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1 Comment on "Rhino JS vs Node JS | Key differences and more"

  1. nice article!

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