Advantages and disadvantages for JavaScript for server side development

JavaScript for server side development

JavaScript is different than other languages. It gives extraordinary features. JavaScript is not alone. It has jQuery, frameworks, data binding, and many other tools in its group. Day by day, people are reducing the stress on the server side and trying to make the web app more dependent on the client side. But there are other ways to use JavaScript now that allow it to have the same benefits of server-side languages. These approaches are first to sign of the bright future of JavaScript. Like all computer languages, JavaScript has also certain advantages and disadvantages.

So, let's explore it -



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 (granted, adding some risk dependent on that quality of the code developed).


Nowadays, there are many ways to use JavaScript through 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.

Rapid development

In Myna, you just create files in the web root with an .sjs extension. This means you can create an edit-save-refresh browser cycle with is very fast for debugging/tweaking code.


JavaScript is relatively simple to learn and implement.


Having JS support server-side means moving complex structures is very easy.


JavaScript is used everywhere on the web. The resources to learn 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.

Shared code

If you need to perform the same function on both the server and the browser, you can use the same code.


JavaScript plays nicely with other languages and can be used in a huge variety of applications. Unlike PHP or SSI scripts, JavaScript can be inserted into any web page regardless of the file extension. JavaScript can also be used inside scripts written in other languages such as Perl and PHP.

Rich interfaces

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

Dynamic ORM

Statically typed compiled languages make it hard to alter objects at runtime. This usually means that ORM has to be defined in advance.

Extended Functionality

Third party add-ons like Greasemonkey enable JavaScript developers to write snippets of JavaScript which can execute on desired web pages to extend its functionality.


Since the advent of ECMAScript 5 (the scripting specification that Javascript relies on), Ecma International has dedicated to updating JavaScript annually. So far, It has received browser support for ES6 in 2017 and look forward to ES7 being supported in future months.

Functional Programming

If you have started playing with advanced JavaScript features then you will appreciate how helpful they are server-side. Because of the consistent server-side environment, it is safe to use advanced features.


Code Always Visible

The biggest disadvantages are code always visible to everyone anyone can view JavaScript code.


Server-side JS is still a new paradigm, and there are many players and no clear winners. ECMA does not have any standards for server-side JS.

Bit of Slow execute

The bitwise operators in Java convert the operand in 32-bit signed integer and turn the result back to a 64-bit floating point. So, the bitwise operation is slow here in JavaScript.

Stop Render

JavaScript single error can stop to render with the entire site. However, browsers are extremely tolerant of JavaScript errors.


You can share your experiences with us in the comment section. Thank you!

Stock photo from Visual Generation

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