JavaScript is a lightweight and interpreted scripted/ programming language introduced in by Brendan Eic. It has a lot of advantages like validation, animation, interactions, ETC. However, like any other programming language, it has some limitations too like you cannot WRITE files on server, browser compatibility issues, etc.

Let us see the limitations of JavaScript one by one:

Writing files on server

JavaScript cannot DIRECTLY write files on server. However, they can do this USING server-side script.

Disable JavaScript

Due to security reasons, every web browser provides an option to disable JavaScript.

The screenshot displays how to ENABLE or disable JavaScript:

• Networking

It cannot be used for Networking applications.

• Browser Compatibility

Applications may behave differently in different web browsers. To support all modern browsers, you need to write cross browser codes.

• Security

Since the code executes on client’s computer, the chances are high for vulnerability and can be exploited for malicious purposes

• Databases

JavaScript cannot access databases. You need AJAX and a server-side script for this.

Note: New developments in JavaScript introduced accessing client-side databases.